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Jean Grey (Earth-616) from X-Men Phoenix Endsong Vol 1 5 page 20


A number of the incidents recounted in the early adventures of Jean Grey are cited to have occurred in specific decades relative to the era of publication. However, the Earth-616 universe operates on a Sliding Timescale these events could not have occurred in the times they appeared due to the fact that it would drastically age the character. As of this writing, it's generally accepted that Jean first joined the X-Men roughly 10 years ago. All historically specific references to the activities of the X-Men will be generalized in the main article, and any references to the Sliding Timescale will be mentioned in the citation notes.

Early Life[]

Early Mutant Manifestation[]

Jean Grey (Earth-616) from X-Men Origins Jean Grey Vol 1 1 001

Jean Grey as a child[1]

Jean Grey was the second daughter of John and Elaine Grey. She grew up in Annandale-on-Hudson, New York, with her older sister Sara. Born a mutant, Jean's telepathic and telekinetic abilities manifested at a young age. Her gift first manifested itself one day when she was playing with her classmate Annie Richardson. When Annie was fatally struck by a speeding car, Jean's telepathic abilities kicked in for the first time and she maintained a mental link with her friend and experienced her thoughts as she died in her arms. The experience deeply disturbed Jean and she withdrew from the outside world. Her parents took her to a number of psychologists until they finally sought the aid of Professor Charles Xavier a mutant telepath himself. Realizing that Jean was a mutant, Charles began working on helping her through her trauma and aiding her in controlling her similar powers.[2][3][4][1] Charles began working with Jean to get her to get over the death of Annie Richardson.[1][4]

Learning Control[]

Initially, Charles succeeded in getting Jean out of her shell and taught her how to control both her telepathic and telekinetic abilities restoring her to some level of relative normality.[2][1] Also at this time Charles was working on opening a School for Gifted Youngsters, where he intended to train new mutants in the use of their powers in the hopes of bringing peaceful coexistence between humans and mutants. Charles was developing a mutant tracking device called Cerebro to assist him in this cause. With his assistant Moira MacTaggert, the pair also had Jean utilize her powers through Cerebro as well.[5] It was during these initial field tests that Charles and Jean made contact with another mutant named Scott Summers who was living in an orphanage in Nebraska at the time. This initial contact helped Scott get over the fears he had since his parents died in a plane crash. As fate would have it, Scott and Jean's lives would become intertwined for years to come.[6][4] Jean recovered well enough to return home, and before retiring one night she observed what she thought was a falling star, taking it as a sign she would be all right.[7]

During the day of her freshman dance, Jean was briefly possessed by her future self, who soon passed on to another era, leaving Jean with no memory of what happened.[8] Jean's progress with Xavier proved to be a short lived success when Charles attempted to bring Jean out of her family home and into a shopping mall. The number of conflicting thoughts from all the patrons was too much for Jean and she lashed out with her powers. After wiping out everyone's memories of the incident, Charles had to start from square one all over again. Eventually, Charles made new progress but was forced to shut down Jean's telepathic abilities until she was more mature and in better control of her other powers. Eventually, Charles was satisfied with his work with Jean, but convinced her parents to allow her to enroll in his school for gifted youngsters.[1]

Jean Grey (Earth-616) from X-Men Vol 1 1 0002

Original training uniform[9]

Jean's sister Sara had her reservations about allowing Jean to leave to attend this school, but Jean convinced her that it was what was best.[10] By this time, Charles had gathered a group of mutants together who also trained to use their powers to combat threats both human and mutant as the X-Men. Jean took on the codename Marvel Girl.[9]

Original X-Men[]

X-Men (Earth-616) from Official Handbook of the Marvel Universe Master Edition Vol 1 23

The original X-Men: Marvel Girl, Angel, Beast, Cyclops, & Iceman[11]

Early Missions[]

Jean joined the X-Men and took the name Marvel Girl and began training to use her telekinetic powers in combat situations with the team in the specially constructed Danger Room.[1][12] Now calling himself Professor X, Xavier was ready to reveal the X-Men to the world. Soon the threat of the mutant terrorist known as Magneto became very real and Xavier called upon his X-Men to prepare for their first battle against his one-time friend.[9] Before they could leave, Jean decided to cut out and go into the Westchester County community that the school resided in. Ignoring the news reports of her teammates battling Magneto at Cape Citadel, Jean realized what her true responsibilities were when she saved a girl her age from an ambulance that went out of control and went to join her teammates.[1] Through Xavier's guidance, Cyclops and the X-Men succeeded in stopping Magneto from taking over the Cape Citadel missile base, forcing the master of magnetism to flee.[9] Due to his exemplary work in the field, Xavier selected Cyclops to act as the field leader for the team, despite Scott's fears that he was not worth due to the lack of control he had over his powers.[12][13]

Later when the mutant teleporter known as the Vanisher began stealing government secrets, Professor X offered the X-Men's aid to the government to stop him. Xavier himself defeated the Vanisher by using his mental powers to cut off his access to his powers, allowing the X-Men to easily capture him and his minions.[14] Later when the Angel had another personality shift following exposure to radiation unleashed by a test by Stark Industries, Marvel Girl and the X-Men stood back to allow the armored hero Iron Man deal with the danger posed by the Angel until he reverted back to normal.[15] Jean and her teammates later met the supremely powerful hero known as the Sentry, assisting him in defeating his foe the General who was attempting to steal nuclear weapons to launch against the nation of France.[16]

About this time, Scott began to develop feelings for Jean Grey, but kept his feelings secret because he feared that his powers might someday harm her. Jean also began developing feelings for Scott, but likewise kept silent hoping that Scott would someday express himself to her. It was about this time that Xavier soon located another mutant, the immovable Blob who was working as part of a carnival freak show and sent the X-Men to recruit him. However the X-Men soon learned the error of welcoming the Blob in with open arms when he turned out to be uninterested in joining the X-Men and later attacked the school. While the X-Men kept the Blob and his army of carnies at bay, Xavier completed a device that allowed him to wipe out all memory of the X-Men's headquarters and secret identities from the mind of the Blob and his cohorts.[17] Later while in a training session the X-Men were briefly surprised by the sudden appearance of a medieval knight, but it soon disappeared.[18] After more training,[19] Magneto resurfaced, this time with his own team of mutants. This so-called Brotherhood of Evil Mutants conquered the South American nation of Santo Marco.[20][21] Xavier soon deployed the X-Men who battled the Brotherhood, which also included Pietro and Wanda Maximoff who were now reluctant members of the Brotherhood as Quicksilver and the Scarlet Witch.[20][22] When the Brotherhood was forced to flee, Xavier threw himself at a booby trapped door to save his students from the blast, and led them to believe that he had lost his mental powers as a result.[20][23] Cyclops stepped up and took a leadership role later when the X-Men were lured into a trap by Magneto and were taken aboard his Asteroid M headquarters. Under Scott's leadership, the X-Men managed to escape without the aid of Xavier. Charles later revealed to his students that he feigned his lost powers as a final test to see if his students could handle themselves without his aid.[24] Soon Professor X was enthralled by the Puppet Master and the Mad Thinker who then used Xavier to order the X-Men to attack their foes the Fantastic Four. Although the two teams were forced to fight each other, Xavier eventually broke free from the Puppet Master's control and exposed the entire ruse. The Puppet Master and the Thinker then fled before they could be captured by the Fantastic Four and the X-Men.[25] Not long after this, Jean and the X-Men were chased by an anti-mutant mob. Cornered in a blind alley the mob started throwing rocks. One rock, thrown by photographer Philip Sheldon, struck Iceman in the head. Scott told his teammates that the bigoted mob were not worth it and they fled into the night.[26]

Jean Grey (Earth-616) as Jean Black from Unlimited Access Vol 1 4

Jean Black[27]

The X-Men were later pulled forward in time by the hero known as Access where the Brotherhood of Evil Mutants had teamed up with the other-dimensional being known as Darkseid and his Apokoliptians who were attempting to conquer their two universes. The X-Men assisted the Avengers as well as the Justice League of America and the Teen Titans, heroes from Darkseid's dimension.[28] Access used his powers to amalgamate heroes from both universes together and brought them to battle Magneto on Asteroid M. These included the Angel who was merged with the Teen Titan known as Robin, Bobby with the Titan's Impulse and Marvel Girl with the Justice League's Black Canary, creating the amalgams of Redwing, Quick Freeze, and Jean Black respectively. While on the Earth, Professor X, the Beast, and Cyclops remained to deal with the various threats there. When Access and his allies defeated Darkseid and Magneto, all the heroes and their foes were returned to their proper times and dimensions. Upon their return home, Charles and the X-Men's memory of events eventually faded.[27] Learning that the Sub-Mariner was also a mutant, both Xavier and Magneto sought to recruit him to their respective sides. Magneto succeeded in summoning Namor first, ultimately leading to another battle between the X-Men and the Brotherhood of Evil Mutants. Realizing that Magneto intended to make Namor a subordinate he refused to join. The X-Men then drove Magneto and his Brotherhood away, but in the aftermath of the battle, Namor had no interest in joining the X-Men either.[29] Iceman later joined the X-Men into battle against the Brotherhood again when they attempted to recruit the thunder god Thor into their ranks, mistakenly believing him to be a mutant. When the X-Men arrived, Magneto and his minions then fled.[30]

Jean Grey (Earth-616) from Excalibur XX Crossing Vol 1 1 001

Jean as Marvel le Fay.[31]

Later, Marvel Girl and the X-Men found themselves pulled forward in time once again. This time by a would-be assassin named Sidestep who was hired to assassinate the group of British superheroes known as Excalibur, a future offshoot of the X-Men, on behalf of the Latverian monarch Doctor Doom. To this end, each member of the X-Men had their memories altered to fit the era in which they were placed and forced to do battle with a member of Excalibur. Jean was transported to the 6th century on the very day that the legendary King Arthur died in battle. Manipulated into thinking she was a mystic named Marvel le Fay, Jean was coerced into trying to prevent the sword Excalibur from being retrieved by the Lady of the Lake. She was opposed by Excalibur's Shadowcat who recovered the sword and ensured that history continued on its intended course. Both were then shunted into stasis until the end of the contest. Ultimately, Excalibur foiled Sidestep's plans and the original X-Men were returned to their own time with no memory of what transpired.[32] Back in their own time, the X-Men continued their training.[33][34]

Time Displacement[]

Jean Grey Vol 1 3 Dauterman Variant Textless

Beast from the future traveled to their time in order to inform them that the future was in a bad state, and that only the original X-Men could help fix it.[35]

Jean and the rest of the team accompanied this Beast to the future, where Cyclops had killed Charles Xavier, Jean herself, was dead (and had the school named after her), and Beast was dying from his second mutation. Because Charles Xavier was not present, the mental blocks he placed on her telepathy were destroyed. That caused Jean to access her telepathy a year earlier than she was supposed to.

After confronting and seeing into the mind of the future Cyclops Jean was repulsed and rejected younger Scott.[36] Later, she used her telepathy to help younger Hank save future Hank from death.

Under Kitty Pryde's leadership, the team decided to stay and resolve the problems of this time before returning to their own.[37] Due to the future X-Men expressing doubt about Scott's leadership as a result of the actions of his future self, Jean was appointed leader of the time-displaced X-Men.[38]

Following the battle with the distant future X-Men and distant future Brotherhood, which included a distant future version of young Jean (who had not returned to the past) who had defected to the Brotherhood, the displaced X-Men and Kitty relocated to join the future Cyclops due to Kitty's feelings that Logan's team had betrayed their founders.[39]

The Trial of Jean Grey[]

Jean Grey (Earth-616) from All-New X-Men Vol 1 18 001

Jean in the future

Soon after their relocation, Jean Grey was abducted by the Shi'ar Empire to be put on trial for crimes perpetrated by the Phoenix.[40] After her teammates and the Guardians of the Galaxy and the Starjammers team up on a rescue mission, they got into a battle with the Shi'ar Imperial Guard and Jean developed new powers combining her telepathy and telekinesis fighting face to face with Gladiator and coming out on top. Afterwards, Jean pointed out that none of what had happened to her had happened before, so she should not be held responsible for a future she may no longer be a part of.[41]

M-Pox Crisis[]

The time-displaced X-Men disbanded and went their separate ways in the wake of the M-Pox crisis, caused by the Terrigen Clouds roaming the Earth's atmosphere.[42] The present-time X-Men suffered a similar fate, though Storm eventually banded them together in order to face this new threat to her people. Jean was personally asked by Storm to join her team, and she accepted, even though she had spent the previous months building a normal life and going to college.[43]

Once the M-Pox crisis was neutralized and the Terrigen Cloud destroyed,[44] Jean reunited with her time-displaced friends at Beast's request. Hank had found a way to go to the past, but he wanted to show them an unfortunate discovery. He had only managed to travel to the past within the timeline they were currently inhabiting and not their own, which led to them finding this timeline's young X-Men in the past they initially believed would be available for them to return. Now certain of their inability to return to their time, the young X-Men looked forward to the new future they could build, which was no longer tied to that of their present selves.[45]

Phoenix Resurrection[]

Invincible Iron Man Vol 4 6 ResurrXion Variant Textless

Possessed by the Phoenix Force

Warned that the Phoenix Force was coming to claim her as its host by the ghost of her older self, Jean refused to share her older self's fate and took steps to prepare for its arrival by consulting its prior hosts -- Rachel Summers, Hope Summers, Magik, the Stepford Cockoos and Emma Frost -- as well as deific beings like Odinson, powerful psychics like Psylocke, and mages like Doctor Strange and Scarlet Witch.[46] The Cosmic Cube, Kobik, sent her back in time to meet with the older Jean Grey - or rather, the Phoenix Force's manifestation as Jean Grey - just prior to her abduction by Mastermind, and Phoenix displayed the overwhelming power of the cosmic firebird by flying them into space - casually disregarding the laws of physics in the process - and picking a fight with Galactus and his herald Terrax the Tamer. Phoenix easily defeated Terrax, but was overwhelmed by the Power Cosmic and almost consumed by Galactus. The younger Jean saved her by unleashing her full psionic powers and attacking Galactus with a purple, Phoenix-like aura, impressing the Devourer of Worlds into leaving. Jean considered changing the future by telling Phoenix that the X-Men were still alive and warning her of Mastermind's plans, but Uatu the Watcher intervened and she ultimately decided against it, returning to the present.[47]

When the Phoenix Force manifested, Jean engaged the cosmic entity in battle and managed to wound it. Despite all of her preparations and Ghost Jean's assurance that the Phoenix Force wanted her alive, the cosmic entity instead immolated the younger Jean Grey, reducing her to a charred skeleton in order to resurrect the older Jean Grey as its one true host.[48] Despite not having been a Phoenix host, Jean found herself in the White Hot Room, where the Phoenix attempted to destroy her using manifestations of its past hosts. Jean realized she was somehow in control of the White Hot Room and commanded the Phoenix Force to resurrect her, which it did so as to get rid of her. She then returned to Madripoor, where she was approached by her resurrected older counterpart.[49]

Poisoned Rebirth[]

While investigating the abduction of the Starjammers alongside the other Young X-Men and Venom, Marvel Girl bonded to a symbiote and was subsequently consumed by a Poison, giving rise to Poison Marvel Girl.[50][51][52][53][54] However, Jean was able to use her psychic powers to resist being fully consumed, analyzing the Poison Queen's weaknesses and trying to reach out to Scott. Jean eventually rebelled and killed the Poison Queen, reconstituting her body out of psionic energy. While she expressed concern that she was no longer human, she was nevertheless happy to be reunited with Scott and her other friends.[55]

With a Young Cable's help the five young mutants were returned to their own time, and Jean blocked all of their memories of future events until after they experience the return home of their younger selves.[56]

First Graduation[]

X-Men (Earth-616) from X-Men Vol 1 7 002

Xavier and the original X-Men during their first graduation.[57]

Once his X-Men had completed their high school educational and training requirements, Professor X threw a private graduation ceremony for them.[57] After the festivities, Charles showed Cyclops the secret chamber where he had completed his first version of Cerebro. He then revealed that he was embarking on a secret mission and had selected Cyclops to run the school in his absence. Although Scott was reluctant to take the position, he agreed to do so.[57][58][12] Without Xavier, Marvel Girl and the X-Men succeeded in stopping the Brotherhood of Evil Mutants from recruiting the Blob into their ranks.[57] In Xavier's absence, the Beast was attacked by an anti-mutant mob and quit the team. Soon the X-Men faced a new evil mutant named Unus the Untouchable, who could erect an impenetrable force field around himself. The Beast soon returned to his friends developed a device that boosted Unus' force fields so that he could not even touch food. Believing that the Beast was trying to help Unus, Jean and her teammates tried to stop him, but they failed. They soon realized that Beast hadn't betrayed them when his device made it impossible for Unus to touch food forcing him to surrender to have the effects reversed.[59] Jean later joined the X-Men in an investigation of a supposed mutant calling himself the Menace and his Mutantmen army. With the aid of Spider-Man, the X-Men revealed that "Menace" was really a group of criminals exploiting anti-mutant hysteria to commit robberies, pinning the blame on mutants.[60] Later the X-Men joined the Avengers, Fantastic Four, Daredevil, Doctor Strange, and Spider-Man in battling the super-powerful Sundown.[61]

Charles soon contacted his students and revealed that he was searching for the alien Lucifer, who was responsible for crippling him. Charles called for his X-Men to join him in Europe. Quickly captured, Charles learned that Lucifer had armed a bomb that could blow up all of Europe and that it was specially rigged to his heart, so that the bomb would go off if his heart was stopped. When the Avengers later arrived to investigate the scene. Charles had Cyclops and the X-Men hold the Avengers at bay until he was able to incapacitate Lucifer with a mental bolt. Charles then stopped the first between the two teams and explained the situation. Satisfied that the X-Men had the situation under control, the Avengers then departed. Guiding Cyclops' optic blast, Charles was able to disarm the bomb. When Lucifer revived shortly thereafter, Xavier allowed him to go free as he had been thoroughly defeated.[62]

Jean Grey (Earth-616) from X-Men First Class Vol 1 1 001

Training costume version 2.0[13]

With the next stage of their education and training, Jean and her teammates were provided with alternate costumes that they occasionally wore in the field. Charles also developed an addition to Cerebro which included an artificial intelligence that taught his students whenever he was absent or busy. When Xavier began detecting a strange force that was taking control of plants and animals near the mansion, he and the X-Men tracked the source near Greenland. There they prevented scientist who were studying global warming from drilling into the domain of ancient creatures that used to be the dominant species on Earth and were in the final cycle of their lifespan. This discovery convinced the scientist to drill elsewhere for their research.[13] During a later training session, Jean attempted to get the other members of the team motivated by offering to go out on a date with whoever won a race to the Danger Room, a competition that was quickly quashed by both the Professor and Cyclops.[63] Later the X-Men were invited to the engagement party of the Fantastic Four's Mister Fantastic and the Invisible Girl. Since Charles was keeping his ties to the X-Men a secret at the time, he and he students had to act as though they did not know each other.[64] During a lull in activity, Charles allowed the X-Men to investigate reports of a savage man running loose in Antarctica. This led to the X-Men discovering the so-called Savage Land and finding an ally in its ruler Ka-Zar during a clash with the primitive Maa-Gor and the native Swamp Men.[65] Deciding to take a vacation, Charles took his students to the Florida Everglades and decided to pay a visit to his old colleague Curt Connors. Learning that Connors had once more transformed into the Lizard, he had Angel, Beast and Iceman assist him in capturing the Lizard and reverting him back to human form. He purposely allowed Scott and Jean to remain alone at Worthington's Florida home in the hopes that their growing feelings for each other could flourish.[66] Later when the rest of the team came down with the flu, Charles sent Cyclops on a lone mission to the Blue Ridge Mountains of West Virginia to investigate disappearances in the area. With Xavier's guidance, Cyclops rescued the missing people from a cave dwelling mutant known only as Frederick. As Frederick was mentally unstable, Cyclops was forced to seemingly slay him in order to save his victims.[67]

Brotherhood Disassembled[]

Charles soon became aware of what appeared to be a new mutant and sent Marvel Girl and the X-Men to make first contact. This led to another battle with the Brotherhood of Evil Mutants. However, this new entity turned out be the cosmic being known as the Stranger who had come to Earth to study mutants. During the ensuing clash, the Stranger transformed Brotherhood member Mastermind into dense matter and captured Magneto and the Toad to examine, while the Scarlet Witch and Quicksilver decided their debt to Magneto had been paid and went their own way.[68] Charles had Mastermind's inert body stored at the mansion until he could find a means of dealing with it.[69] The X-Men did not have time to celebrate their victory as Charles' step-brother Cain Marko, who was transformed into the avatar of the demon Cyttorak attacked the mansion. Charles explained to his students how his brother was transformed by the Crimson Gem of Cyttorak into a human juggernaut during their military service while they prepared defenses for the mansion.[70] Unable to attack the Juggernaut's mind thanks to a psi-proof helmet, Xavier contacted the Human Torch for assistance. While the X-Men kept the Juggernaut at bay, the Torch used his flame powers to remove Cain's helmet leaving him vulnerable to attack and eventually defeat at the hands of Xavier. After thanking the Torch, Xavier erased his memories of his encounter with the X-Men and the location of their headquarters. While the Juggernaut was defeated, the X-Men were seriously injured as a result and went through a period of healing.[71] Meanwhile, Charles secretly contained the Juggernaut on the mansion grounds, keeping him in a state of coma.[72] Eventually, the X-Men recovered from their injuries and Charles decided that they should all take a brief break from adventuring.[73]

While the Professor was away, Scott and the others took time to relax, spending a lot of time at their regular hangout, Coffee A Go-Go, unaware that they were being observed by young Skrulls on a mission to infiltrate the Earth. When the Skrulls later posed as the X-Men to free various creatures that escaped from Monster Isle, Jean and the others helped recapture the beasts. Realizing how selfless the X-Men were, the Skrulls later saved Scott and the others when their latest monster hunt went south, compromising their mission enough to get sent him leaving the X-Men confused about the entire ordeal.[74] When Angel and the Scarlet Witch both appeared to have gone missing, Jean and the X-Men joined Quicksilver in searching for the pair. After a brief confrontation they learned that Warren and Wanda were briefly dating in secret until they realized that they came from very different walks of life and decided to amicably end their relationship.[69] Later Jean was contacted telepathically by Charles who had gone missing while on a mission to Africa. Hearing his telepathic cry for help the X-Men hired the retired 1950s adventurer known as Gorilla Man to help them rescue Charles from a mysterious cave that sapped the wills of those trapped inside.[75] Having established a friendship with the Scarlet Witch, Jean began spending time with her outside of missions with the X-Men. The pair were later recruited by the Black Widow to assist on a mission for S.H.I.E.L.D.. The two young mutants attempted to stop a plot by the terrorist organization Hydra who were attempting to steal a prototype submarine. Captured by Hydra, Jean fought off Hydra's attempts to brainwash them with the help of Professor X until S.H.I.E.L.D. could arrive and drive Hydra off.[76]

The X-Men later assisted Thor in tracking down members of the Midgard Vanir who had kidnapped Iceman in a plot to revive the Frost Giant known as Ymir on Earth.[77] By this time, Mastermind's consciousness expanded allowed him to use his illusion casting powers at great distances for a short period of time. Seeking to get revenge against the X-Men, he used his powers while the Professor was away to trick the X-Men into going on a "mission" to Monster Isle.[78] When Charles returned to the mansion and found his charges missing, he managed to tack them down and expose Mastermind's plot, defeating him in mental combat. Xavier then had Mastermind's inert body removed to a safer location where he could do no further harm.[79] Cyclops and the X-Men later returned to the mansion where their training resumed as normal. During this period, Charles classed Jean as an "Omega Class" mutant, a classification for mutants with unlimited potential.[80] Later bother Charles and the X-Men were later invited to the wedding of Mister Fantastic and the Invisible Girl, once again having to pretend to not know each other. The wedding was soon crashed by an army of super-villains under the control of Latverian monarch Doctor Doom a long time Fantastic Four foe. Jean and the X-Men defended the wedding against attacks made by the Mole Man and his Moloids,[81] Batroc the Leaper, the Executioner, and the monster Grogoom.[82] Eventually Mister Fantastic dispelled the villains with a time displacement device provided to him by the Watcher and the wedding went on uninterrupted.[81][26][82]

Non-Mutant Threats[]

The X-Men were placed on another break, and when Warren began showing interest in Jean, Scott decided to give up on trying to express his emotions to her. When anti-mutant hysteria had reached new highs at this point thanks, in part, to the bigoted fear mongering of inventor Bolivar Trask. Seeking to try and dispel some of the prejudice, Charles organized a televisted debate with Trask. Trask in turn used the debate to unveil his mutant hunting Sentinel robots to the public. However the machines soon turned on him, deciding that the only way to protect humanity was by ruling it.[73][26] Charles summoned his X-Men, but they were too late to stop the Sentinels from absconding with Trask, although one of the robots suddenly deactivated in the battle. Before they could determine why, Charles led his X-Men out to the secret base of the Sentinels only to find it heavily fortified with powerful weapons.[73] During the initial attack on the Sentinels fortress, both the Beast and Iceman were captured. While the other X-Men renewed their attack, Xavier probed the base and learned that the Sentinel's leader, Master Mold was probing the Beast's mind to learn what he could about the X-Men. Xavier prevented the probes from revealing anymore before his astral form was driven back by Master Mold, who detected his presence.[83] With his X-Men still trapped inside, Charles decided to determine what stopped the Sentinel back at the TV station and used his mental powers to commandeer a ride back into the city. There he discovered that a giant crystal display at the Crystal Products Building was jamming the signal to the Sentinel, he made arrangements to have it flown to the Sentinels' headquarters. While Charles had the police and military jam the Sentinels, Bolivar -- having realized the errors of his ways -- sacrificed his life to seemingly destroy Master Mold. The X-Men also managed to escape, but were injured while the fled, particularly Iceman who was in critical condition.[84]

Professor X accompanied the X-Men to the hospital in order to ensure that their secret identities were not exposed, although he was incredibly careful not to led the authorities or hospital staff suspect that he had ties with the group. When they X-Men became aware that Warren's parents were going to be making an impromptu visit to the school, Charles and his students tried to return home before their arrival. This led to everyone but the recovering Iceman to be captured by Magneto, who had escaped the Stranger's world. After releasing Xavier and his charges high into the atmosphere in a balloon, he captured Warren's parents.[85] Charles used his mental powers to guide Iceman in stopping Magneto from using Warren's parents as genetic templates to create an army of mutant slaves. All the while, he also guided the X-Men in to getting back to ground while also contacting the Stranger to inform him of Magneto's escape. Sure enough, after the X-Men arrived, the Strange soon followed forcing Magneto to flee.[86] As it turned out the purpose of the Worthington's visit was to inform Angel that his Aunt Mimi had gone missing while exploring Brazil. Angel eventually tracked her down in the hidden domain known as the Land of Mists. It was here Warren decided to stay feeling that he belonged in this society that did not judge him for being different. When the other X-Men returned upset that Worthington chose to stay, Charles tried his best to console the team.[87] By this time Charles the X-Men began working with FBI Agent Baker who seemed to occasionally replace Fred Duncan as liaison for the X-Men. He also got into contact with his colleague Able Stack and agreed to have Stack bring his robot X-50 to interact with his students. Xavier later dispatched the X-Men and X-50 to Mount Saint Helen's where there were sightings of Lava Men.[88] Xavier later warned his students when it became known that the X-series robots were proving to be unstable. The Lava Men were eventually stopped, but X-50 was destroyed in the resulting battle. The X-Men recovered X-50's memory which Able Stack was later used to create X-51 later known as Machine Man.[89]

The X-Men later crossed paths with the former Frightful Four member known as Medusa. Charles offered to assist her in recovering her lost memories but found doing so difficult. Suspecting that she was a mutant, Charles invited her to join the X-Men. Medusa's addition to the team made Jean very jealous, as she was drawing attention away from her male classmates. When her former leader, the Wizard sought to bring Medusa back into the fold, the X-Men battled him. During the fight Charles realized that the Wizard had implanted a device on Medusa to control her mind. After Cyclops destroyed it, Medusa was freed from the Wizard's influence and went on her own. Charles then revealed a surprise to his students, revealing that Angel had returned to them.[90] When Jean was struggling to find a role model in the male dominant group, Charles arranged for Marvel Girl to shadow the Invisible Girl of the Fantastic Four, assisting them in defeating the Mad Thinker and his Awesome Android with an assist from the male members of her team.[91]

The group was soon attacked by Calvin Rankin who after an accident endowed him with the ability to mimic the abilities of those in close proximity to him, attacked the X-Men in the costumed identity of Mimic after learning their identities. During their initial clash, Mimic captured Jean and fled. The X-Men followed after Mimic when he kidnapped Jean and fled to the secret cave laboratory he lived. Here Mimic hoped to use the X-Men's stolen powers to open up a buried device invented by his father that Mimic assumed would make his power duplication abilities permanent. As it turned out this was not the case and Xavier allowed himself to be taken hostage while Mimic used the device which stripped him of his powers instead. Charles then erased Calvin's memories of his encounter with the X-Men and set him free.[92][93] Shortly thereafter, Jean went to visit Wanda in the city. Working together they foiled the Mole Man's attempt to rob a museum.[79] Filled with self-doubt, and still unable to reconcile his feelings for Jean, Scott secretly packed his bags intent to leave the X-Men. However, this proved to be short lived when Lucifer resurfaced soon after, and he manipulated the Blob and Unus to team up and commit crimes dressed like the X-Men. Cyclops was pulled back into the fold and rejoined his team mates' attempt to apprehend them and clear their names, but Blob and Unus managed to escape. When Xavier attempted to learn the identity of the Blob and Unus' benefactor he was incapacitated with with a mental defense weapon. After the Beast developed a device to block the effects of the mental distorter, Xavier led the X-Men after Lucifer.[94] While Lucifer attempted to activate his Dominus computer to enslave the Earth, the X-Men attempted to infiltrate his fortress the Professor was captured by Lucifer's robots. Cyclops had a crisis of authority when the X-Men questioned his orders on how to stop Lucifer, believing that Scott might be fooled by their foe. However, learning that only the robots could utilized the Dominus computer, Cyclops ordered the X-Men into tricking the robots into destroying their own computer, leaving Lucifer with no means of activating his computer. Unimpressed, Lucifer's superiors banished him to another dimension, ending his threat to Earth.[95] Charles and the X-Men were later asked to assist the military in capturing the gamma spawned monster known as the Hulk who was sighted in the Pacific Northwest. However they soon learned from the Hulk's sidekick Rick Jones that the military sought to weaponize the Hulk. Feeling sympathetic for the Hulk's alter ego of Bruce Banner, Xavier and the X-Men let him go and acted as though their search was fruitless.[96]

After their training session Charles allowed his students to have yet another brief break from their studies and training. While the X-Men were gone, they were targeted by Maggia leader Count Nefaria who enlisted the aid of the Scarecrow, Planetman, the Eel, the Porcupine, and the Unicorn in order to capture the youths. When Nefaria offered the X-Men to join his organization they refused and were taken prisoner while he targeted Washington D.C.[97] The Count then sealed Washington in an impenetrable dome and demanded a huge ransom to release it, framing he X-Men in the process. Upon learning this, Charles offered his "expertise" to the military in order to get close enough to Washington to send his astral form. Contacting his X-Men, Charles instructed them to play along. Having developed special leg braced to allow for limited mobility, Charles then infiltrated the dome when Nefaria lowered the shield to allow the X-Men to collect the ransom. While the super-villains fought over the money, Xavier infiltrated Nefaria's base of operations and deactivated his device. Tricking Nefaria and Unicorn into thinking they escaped with the ransom, Charles then mentally alerted the Coast Guard as they attempted to flee the country. In the aftermath of the battle, Jean got a letter from her parents telling her that they enrolled her at Metro College.[98] Although Jean was leaving Xavier's school, she still kept her ties with the team. On her first day of class she made fast friends with Ted Roberts, who had an reciprocated interest in her. This revelation crushed Scott's feelings, but he still could not muster the courage to tell Jean how he felt, still believing that she deserved better. Later, when the X-Men battled the insane entomologist known as the Locust, Cyclops valiantly X-Men foiled his plan to destroy America's wheat supply with giant insects.[99] Back at the mansion, Charles began working to enhance Cerebro some more and got caught in a mental loop between himself and the computer. In order to save himself, Xavier pulled the sleeping X-Men into his mind where they worked to free him.[100]

After assisting his students in rescuing children from a burning orphanage, Jean was returned to Metro College. She took a backseat when the X-Men were deployed and encountered El Tigre, an explorer trying to find the second half of the amulet of Ahau god Kukulkan. She provided text books from Metro College's library about Kukulkan which assisted the X-Men in locating their foe's hideout. The X-Men followed El Tigre and his minions to the American Museum of Anthropology but failed to stop him from recovering the second half of the amulet, endowing him with the powers of Kukulkan.[101] Although El Tigre was able to now block Charles' mental probes, he managed to locate the lost city where their foe escaped to. The X-Men went there and eventually defeated El Tigre/Kukulkan, stripping him of his powers, however Cyclops accidentally injured Angel with his optic blast in the process. Knowing that he was a rival for Jean's love, Warren accused Scott of blasting him on purpose in order to have a better chance with Jean.[102]

Factor Three[]

Jean Grey (Earth-616) altered training costume from X-Men Vol 1 27

Altered training costume.[103]

By the time the X-Men returned from their mission, Angel had taken back his accusation, believing that it was came from hysteria from his injuries. Although the damage had been done, as Scott's worst fear had come true: he harmed one of his friends with his optic blast. Scott had no time to lament over this, as Charles became aware of a new mutant menace that threatened them and began actively seeking out new members to boost the X-Men's ranks. Meanwhile at Metro College, Jean got to know Ted better, learning that he strove to be his best as he felt overshadowed by his brother, scientist Ralph Roberts. Jean was also learned that her old foe Calvin Rankin was also attending Metro. A revelation that did not bode well as she learned this after a lab explosion that restored his mind and powers. When Jean returned to the X-Men she surprised them with alterations to their costumes: new red belts. Jean also altered the head piece of her own costume. Charles soon sought to recruit new members into the X-Men. When Mimic revealed himself and offered to join the X-Men, Charles decided to recruit him onto the team. Much to Jean's surprise, as Scott was bumped from the position of field leader in favor of Mimic. Seeking revenge, the Puppet Master attempted to take control of Charles' mind again. When this failed, he instead took possession of Mimic and had him attack the X-Men. Jean and the other X-Men followed Mimic back to the Puppet Master's secret hideout and defeated their foe, freeing Mimic from his control.[103] Charles then began training the X-Men and Mimic in order to prepare them for the coming battle. Their foes turned out to be a mysterious organization called Factor Three who sent their operatives Banshee and the Ogre to attack the school. As he was being forced to work with Factor Three thanks to a headdress rigged with a bomb, Banshee went out of his way to sabotage the Ogre's attack and ultimately the X-Men defeated the Ogre and freed Banshee from Factor Three's control.[104]

Later, the X-Men accidentally revived the Super-Adaptoid who had hidden itself on the Xavier estate. Seeking to turn the human race into androids like itself the Adaptoid attempted to start with the X-Men. Mimic made the ultimate sacrifice when he tricked the Super-Adaptoid try to duplicate the powers he mimicked off the X-Men. While the Adaptoid was rendered inert, Mimic was also made powerless and left the team. Cyclops then resumed the role of field leader of the X-Men.[105] Soon after this, Charles, Jean and Angel were later captured by the mutant known as the Warlock who sought to make Jean his queen after a bid to take over the world. Charles channeled his mental powers to bring Cyclops and the rest of the X-Men to the Warlock's hideout. There the X-Men bested the Warlock's minions and while their foe was distracted, Xavier used his mental powers to force the Warlock back into a state of suspended animation.[106]

Jean Grey (Earth-616) Graduation Costume from X-Men Unlimited Vol 1 42

Graduation Costume[107]

With the threat of Factor Three still looming, Charles continued to train his students. He also attempted to bring Scott and Jean closer together. He sent Scott to Metro College to return some books that Jean got during their battle with El Tigre. There Scott and Jean met scientist Ralph, the older brother of Ted. When Ralph showed off his new cobalt powered armor, a combination of a previous blow to the head and the unstable technology caused Ralph to go on a rampage as the Cobalt Man. The rest of the X-Men were then summoned to help restore Ralph back to normal.[108] Later, the X-Men threw a surprise birthday party for Jean. As a gift, Charles gave Jean a new green and yellow costume which she would end up wearing as a regular costume much later.[107] Returning to his attempts to cure Cain, Charles strapped himself and his step-brother into a Energo-Transformer to try and probe his mind for a means of curing him. Instead the presence of the being known as the Outcast caused feedback that caused the machine to explode. While Charles was put in a coma, Cain was revived and endowed with Xavier's mental powers. The newly revived Juggernaut was too powerful for the X-Men and left after being mentally contacted and asked to join Factor Three.[72] While Charles was in a coma, the X-Men were still able to probe his mind and learn of the origins of the Crimson Gem of Cyttorak and with the aid of Dr. Strange, Earth's Sorcerer Supreme. He sent Cyclops and Marvel Girl into the Crimson Cosmos where they battled Outcast and recovered a Crimson Gem and returned to the Earth dimension. There they tricked Juggernaut into taking it, banishing him to Crimson Cosmos before he could join Factor Three. However while the X-Men were busy defeating the Juggernaut, Factor Three kidnapped the Professor.[109]

The X-Men began trying to search for Charles, but were sidetracked when Jean received a call from Ted Roberts asking for help. Jean and the others soon learned that his brother Ralph was captured by the subterranean ruler Tyrannus who sought to use Ralph to build a robot to battle his rival the Mole Man. While below the surface of the Earth, Angel, Iceman, and Marvel Girl were enthralled by the Mole Man with the mist of forgetfulness and sent to battle Tyrannus. They were later rescued by Cyclops and Beast, and the battle was ended when they exposed both Tyrannus and Mole Man to the mists, making them forget who they were. The X-Men then rescued Ralph and returned him to the surface.[110] After this incident, Jean returned to Xavier's school, likely due to the fact that he double identity was compromised by Ted Roberts. Back at Xavier's School, the X-Men received a partial distress signal from Banshee warning them that Factor Three was sending a "spider" after them. This turned out to be a spider robot, but the machine was destroyed by Spider-Man who happened to be in the area. Detecting the robot's arrival, the X-Men tracked it down and found the wall-crawling hero. Mistaking Spider-Man as the menace that the Banshee warned them about, the X-Men attacked him. However they realized their error when cooler heads prevailed they realized their error and let Spider-Man go. In the aftermath of the battle, the X-Men were able to track the location of Banshee's signal to a mountain range in Europe. However there was just one problem: the X-Men had no money to get there.[111] Travelling into New York City to try and find a means of earning the money to fly to Europe, the X-Men ended up in a battle with Mekano, a disgruntled youth who used a powerful exoskeleton to terrorize the city. After stopping Mekano from trashing a new library, they unmasked him revealing him to be Tom Reagle, son of wealthy philanthropist Andrew Regal. Tom, as it turned out, was acting out because he felt his father ignored him. In thanks for stopping his son, Andrew rewarded the X-Men with the money they needed to make their trip.[112]

The X-Men were later attacked mid-flight and were forced to abandon their plane. They were soon attacked by more spider robots and taken prisoner in the secret headquarters of Factor Three with Charles and Banshee. The young mutants learned that the group consisted of their old foes Vanisher, Blob, Unus, and Mastermind as well as the shapeshifter known as the Changeling. Under the leadership of the so-called Mutant Master, Factor Three were plotting to set off a nuclear holocaust so that the human race would be exterminated and mutants could rule the world.[113] The X-Men managed to break free and escape from Factor Three. They then split up into two groups to disarm the bombs Factor Three planted to trigger this war. While Marvel Girl, Angel and Beast went to Russia, Cyclops and Iceman tried to disarm the bomb in America. However, the respective armies of both countries put up opposition. Meanwhile, Charles began trying to convince the already suspicious Changeling of Mutant Masters ulterior motives.[114] The X-Men ultimately foiled Factor Three's plot and Xavier -- with the aid of Banshee and Changeling -- revealed that the Mutant Master was really a member of the Siris race who was attempting to exterminate humans and mutants so the Earth could be colonized. With his mission a failure, Mutant Master committed suicide over capture and the members of Factor Three disbanded.[115]

The "Death" of Xavier[]

After their return home, Xavier helped the X-Men defeat a mind controlled scientist who rebuilt a Sentinel, and although Charles sought to determine how he as manipulated he never learned the source. The X-Men's attentions were later turned to Cyclops who started seeing visions of a demon running loose. With the aid of Dr. Strange they learned that the demon followed Scott back from the Crimson Cosmos and returned it there.[116] While going to their usual hang-out, Coffee A Go-Go in Greenwich Village, the X-Men discovered that regular beat poet Bernard the Poet was a latent mutant. With the help of the Professor, the X-Men shut down his reality altering powers before anyone could get harmed. Charles later guided the X-Men in tracking down a strange reading picked up by Cerebro, uncovering the android Dragon Man. The creature was taken by Jean, and accompanied the X-Men on various missions for a time before Charles convinced Jean to let the dragon find a new home on Monster Isle.[117] Soon after, Xavier decided that the X-Men had passed their latest round of training and awarded them with new costumes.[115]

Soon after, Charles discovered that an alien race called the Z'nox were planning an invasion of Earth. As fate would have it, the Changeling broke into the mansion and came to the Professor seeking to atone for his past evil after learning he contracted cancer. This worked for Xavier, who had Changeling take his place, endowing him with mental powers of his own. Charles confided only in Jean, also unlocking her telepathic powers and had her vow to keep this deception a secret until it was time to fight back against the Z'Nox.[118] Marvel Girl continued her training with the X-Men, acting as though nothing had happened, although the other members of the team suspected that something was going on. However before they could investigate further, the X-Men were sent on a mission to investigate reports of the discovery of the Frankenstein's Monster, to determine if there was a mutant connection. The X-Men battled what they thought was the monster, but soon destroyed it, exposing it as a robot. Using his borrowed powers of telepathy, the Changeling was able to learn that the robot was sent to Earth over 150 years prior to act as an ambassador for an alien race, but it soon malfunctioned.[119] Soon the surface world was threatened by yet another subterranean dweller, Grotesk, who sought revenge for nuclear tests that killed his people and mutated him. When Grotesk threatened to use a device to destroy the surface world, the X-Men fought back against him.[120] During the final battle against Grotesk, the Professor seemingly sacrificed his life to destroy the creature's machine, seemingly slaying Grotesk as well. When the Changeling died, he remained in Xavier's form leaving the X-Men to believe that Charles was dead. Jean maintained this ruse as well, convincing her teammates that she believed Xavier was dead.[121]

A funeral was quickly arranged for the man whom the X-Men believed to be their mentor, but the mourning was disturbed by the arrival of Quicksilver who had come to pay his respects. Later they watched what they thought was video confession of the Professor telling them that he had a terminal illness and before his passing endowed Marvel Girl with telepathic powers. The Professor also warned that Magneto had returned and soon the X-Men were out hunting their old foe. Tracking down his new hideout, the X-Men were unprepared to fight Magneto and his reformed Brotherhood of Evil Mutants and they were quickly captured.[122] Although the team was shackled, Marvel Girl was able to free Angel and he fled Magneto's base to seek out the Avengers and get their help.[123] While the Angel managed to make it to the Avengers, Cyclops also broke free and battled Quicksilver when suddenly the Avengers arrived.[124] Magneto had prepared for this and planted a bug on Angel for the Avengers to find, making it seem like he betrayed the Avengers. He then used a mind control device to turn the X-Men into his slaves and ordered them to attack the Avengers. However the Avengers found the bug, and realizing Magneto was leading them into a trap only pretended to incapacitate the Angel. Free once more, the Angel freed the X-Men, and the Brotherhood was forced to flee setting their base to explode. The X-Men, Avengers and most of the Brotherhood escaped, and Magneto was seemingly killed in the blast.[125][126]

Growing Pains[]

Back at home, the X-Men continued to mourn the apparent loss of their leader. They had Xavier's will read to them by attorney Foggy Nelson who informed them that Xavier's school and financial assets were being given to his students. The X-Men's mourning was interrupted once again, this time by the Juggernaut who was brought back from the Crimson Cosmos by one of the Professor's machines. The X-Men battled the Juggernaut who could not believe that his step-brother was dead and when he saw the tomb stone for himself thought it was a trick. However the Juggernaut's return to Earth proved only temporary and he was shunted back to the Crimson Cosmos. In the aftermath of the battle, FBI agent Fred Duncan told the X-Men that in order to handle mutant menaces, the X-Men had to be broken up across the country.[127]

Soon Bobby and Hank were sent out to the west coast, while Scott and Jean were ordered to remain in the New York area, while Warren was assigned to travel all points in-between for mutant menaces. Scott and Jean officially came to terms with their feelings by this time and began dating. As a cover, Jean worked as a model while Scott took up a job as a radio DJ so he could keep track of news stories that might involve mutants. Later, Cyclops and Marvel Girl later stopped the android known as Quasimodo from stealing devices needed to enhance his Computo and its army of Cybertron robots.[128] The government mandate that the X-Men remain apart proved to be short lived when the mutant known as Mesmero used his powers to awaken latent mutants across America and gather them in his Mutant City on the west coast. One of these mutants was a young girl named Lorna Dane who was saved from traffic by Bobby, who instantly became smitten by the girl. While the X-Men began trying to track down Mesmero and his mutant army, Iceman and Lorna were captured.[129] The X-Men managed to track down Bobby and Lorna and were shocked when Mesmero announced that Lorna was the daughter of Magneto, and that their old foe had seemingly survived their previous encounter.[130] The X-Men were no match for Mesmero and Magneto, and worse Lorna was conflicted as to where her loyalties were. The X-Men were then forced to flee, and come up with a new plan. Cyclops then developed the identity of Eric the Red, and sought to infiltrate the Mutant City from the inside.[131]

While Cyclops succeeded in infiltrating the group, the X-Men's cover was blown by Iceman who disobeyed orders to stay behind because he was too personally invested in the fate of Lorna Dane. In the ensuing battle, Bobby convinced Lorna to renounce her alliance to Magneto after revealing documents that proved that he was not her father. The X-Men then destroyed the Mutant City, fleeing from their captors.[132] Back in New York, the X-Men were invited to attend the wedding of the Avengers Yellow Jacket and the Wasp.[133][134] Testing out some of Xavier's abandoned machines, Marvel Girl later accidentally pulled the Negative Zone tyrant known as Blastaar to their dimension. The X-Men proved no match for Blastarr, but eventually the very energies that brought him to Earth, seemingly slew him.[135]

Having kept in touch with his younger brother over the years, Scott eventually introduced the X-Men to Alex on the day he graduated from university. However, the reunion was marred when Alex was kidnapped by the so-called Living Pharaoh. The Pharaoh managed to kidnap Alex while framing Scott for murder at the same time by faking his own death.[136] Cyclops was later captured as well and brought to Egypt with his brother. There he learned that his brother was a mutant as well, able to control cosmic energy, but his powers were tied to the Pharaoh. The Pharaoh had kidnapped Alex and planned to used a device to boost his own power. When the X-Men finally tracked them down to Egypt a battle broke out and ultimately the tide of battle was reversed when Alex manifested his mutant powers for the first time.[137] Alex was horrified by the level of power he commanded and while Cyclops tried to calm him down, they were attacked by the Pharaoh and his minions again. Alex was captured again and placed in a device to channel his powers into the Pharaoh transforming him into the gigantic super-powerful Living Monolith. However the Monolith was easily defeated when Alex managed to overload the device causing a massive explosion. The destruction of the machines caused the Pharaoh to revert back to human form, but Alex was still terrified of his powers.[138]

Havok and Lorna[]

Jean Grey (Earth-616) posing as the Scarlet Witch from X-Men the Hidden Years Vol 1 8

Posing as the Scarlet Witch[139]

While the X-Men had to deal with the Egyptian authorities, Alex fled into the desert. Unaware of this, after the X-Men escaped the authorities, they learned that Lorna Dane had been kidnapped from her home. While Bobby and Hank returned to the States to search for her, while Cyclops, Marvel Girl and Angel remained in Egypt to look for Alex. From Lorna's trashed apartment, Hank and Bobby soon learned that Larry Trask -- son of Bolivar -- and federal judge Robert Chalmers had reactivated the Sentinels and actively sent them out to capture mutants. Unknown to the X-Men at the time, this is what happened to both Alex and Lorna.[140] Iceman and Beast were then attacked by Sentinels, while Bobby was captured Hank managed to escape and warned the others who rushed back to the United States. At Larry Trask's Sentinel base Bobby was reunited with Alex -- equipped with a uniform that controlled his powers and given the code-name Havok -- and Lorna. Soon Larry's Sentinels kidnapped Angel, Mesmero, and other mutants. Later, Cyclops, Beast and Marvel Girl located Larry's base and began to infiltrate it. Realizing that Larry intended to execute all mutants without a fair trial, Judge Chalmers removed a necklace from around Larry's neck that nullified his own mutant powers. However this was too late as his last orders to the Sentinels were to destroy all mutants.[141] The remaining X-Men battled the Sentinels, tricking them by switching costumes with the recently captured Quicksilver, Scarlet Witch and Toad. Ultimately, Cyclops tricked the Sentinels into defeating themselves by convincing them to attack the source of mutations, radiation, and nearly the entire Sentinel fleet flew into the sun. However during the course of the battle, Havok was seriously injured.[142]

With Larry Trask's plot in shambles, the X-Men fled, and Scott sought out one of the Professor's old colleagues, Karl Lykos to treat Alex's injuries. What the X-Men were unaware of was that Lykos was a non-mutant variant who required the life forces of others to live. Absorbing some of Alex's life force caused Lykos to transform into the pterodactyl-man Sauron who then went on a rampage across the city. Although Scott ordered the X-Men to lay low amid growing anti-mutant hysteria, Angel decided to go into action against Sauron.[143] The X-Men went after Sauron and battled him, but as the creature's powers began to run low and a reversion back to human form began, Sauron hypnotically controlled Angel and had him bring Lykos back to his lab. The X-Men later recovered Alex, but soon the connection between Lykos and Sauron was revealed when he absorbed life energy from Lorna Dane and transformed into Sauron again. Ultimately, Sauron fled to the origin of his transformation into a non-mutant variant, Tierra del Fuego. The X-Men confronted him there with Lykos' fiancee Tanya Anderssen. But Lykos seemingly committed suicide by jumping off a cliff.[144] Angel went after Lykos first and was knocked out ending up in the Savage Land. He was rescued by a man calling himself the Creator and his Mutates. Who claimed that they were being persecuted by Ka-Zar and his people. The other X-Men found their way into the Savage Land and met with Ka-Zar, learning that the Creator and his Mutates were actually the ones terrorizing the region. Meanwhile, the Creator gave Angel a new costume and convinced him to fight against his own teammates. None suspected that the Creator was actually the X-Men's old foe Magneto.[145]

During the ensuing battle between the X-Men and the Mutates, Magneto revealed his hand unleashing his latest creation Lorelei who could enthrall men with her voice. This had no effect on Marvel Girl who used her telekinetic powers to unleash Cyclops' optic blast, destroying Magneto's machines that sustained the Mutate's powers. As Magneto's citadel exploded, the X-Men fled, and their long time foe seemingly perished once again.[146] On their way back to the United States the X-Men stopped in Washington D.C. where they clashed with the Japanese mutant named Sunfire who was attacking the capital to avenge the nuclear bomb drops on Hiroshima and Nagasaki during World War II. Sunfire was being encouraged to make these attacks by his uncle Tomo Yoshida. But it was not until Sunfire's father Japanese delegate Saburo Yoshida was killed by his uncle Tomo did Sunfire realize the errors of his ways and surrendered to the authorities.[147]

The Return of Professor X[]

By this time Charles Xavier resurfaced, having faked his death in order to prepare for an invasion by the Z'nox. He revealed himself to Havok and Lorna, who had been waiting at the mansion while the X-Men were away, but they soon returned. Briefing them on his deception and the impending invasion, Charles quickly resumed leadership of the X-Men and began preparing them for the final battle. As the X-Men battled the Z'Nox invaders, Charles linked his mind with every good human being on the planet and channeled these alien emotions to the Z'Nox via his X-Men, forcing them to flee. The strain caused Xavier to suddenly collapse.[118] In a coma and in ill health, Charles mind was probed for a possible solution to his condition. Xavier told them to seek out Bruce Banner and recover a gamma powered device that could cure him. The X-Men succeeded in recovering the device and curing Charles, but not until after a clash with Banner's alter-ego the Hulk and the military. Although the X-Men were reunited once again, and had the addition of Havok and Lorna Dane in their ranks, already the group was beginning to fray once again as a growing love triangle bloomed between Lorna Dane, Havok and Iceman. Lorna was quickly becoming more interested in Havok, making Iceman instantly jealous and possessive.[148][149]

Shortly thereafter Spider-Man's foe Kraven the Hunter publicly "outed" Spider-Man as a mutant. Although still in recovery, Charles was at least able to help his X-Men to pinpoint Spider-Man's general location. The original team went to search for Spider-Man tracking him down to the Coffee Bean in New York. This location was attacked by Kraven and the Blob forcing the X-Men and Spider-Man to reveal themselves. While Kraven and the Blob were defeated by the heroes, Kraven completed his actual goal: collecting DNA from the X-Men for his employer, Mister Sinister.[150] When the Fantastic Four were later threatened by a mysterious foe, their leader Mister Fantastic contacted Charles Xavier for help protecting his family. Charles invited the Fantastic Four to his home and offered two deactivated Sentinels to help defend the Fantastic Four's headquarters. Unfortunately, the FF's mystery foe -- secretly their longtime enemy Dr. Doom -- had hacked into the Sentinels and sent them on a rampage through New York City. The Sentinels were stopped thanks to the combined efforts of the X-Men, Fantastic Four, Spider-Man, Daredevil, and Dr. Strange. Jean and Charles defended the Mansion when Doom attempted to steal Cerebro.[151] The X-Men later wished the Fantastic Four luck on defeating their mysterious foe.[152] Later when Doom absorbed the power of Galactus,[153] the X-Men were one of the many heroes who tried to defend the Earth from Doom. Charles and the X-Men were later seemingly slain.[154] Ultimately Mister Fantastic defeated Doom with the Cosmic Cube and used its power to undo the damage cause, restoring all the slain heroes to life.[155]

Hidden Years[]

Finally back in full health, Charles had the X-Men brief him on their activities while he was in hiding. But the treatment appeared to have an effect on Xavier's mind as he began treating his X-Men like they were still students.[149] First they showed him the Sentinel ships that they had captured in his absence. Charles used this opportunity to test their abilities by creating a mental battle between the X-Men and illusions of their greatest foes. The subsequent test was poorly received by Iceman, who was upset at Xavier's deception as well as Lorna becoming more interested in Havok than him.[156] Learning that his students failed to confirm if Magneto had died in their last encounter, Charles sent them back to the Savage Land to investigate. The original team, except Iceman who quit the team, went on the mission leaving Lorna and Havok in reserve. The group hit turbulence entering the Savage Land and were forced to crash land. They were soon knocked out by drug tipped darts from a local tribe. Detecting this, Charles ordered Havok, Lorna, and Iceman to rescue them, Alex and Lorna agreed but Bobby once again refused to follow orders. Meanwhile, the male members of the X-Men awoke to learn that Marvel Girl was sent to the land of the dead, and assumed that she had died in the crash.[149] In reality, Jean's situation was literal, as she was sent to a physical place in the Savage Land that the tribe sent their ill and elderly. There her body was recovered by the avian Nhu'Ghari who were under the command what appeared to be the ghost of Magneto.[157] When Jean awoke alone she began searching her location and discovered the "ghost" ordering the Nhu'Ghari to get their slaves to gather the strange volcanic gas in the region that gave those exposed to it incredible regenerative properties and low-level telepathy. Jean was eventually discovered and incapacitated by Magneto.[158]

Magneto revealed to Jean how he survived their last encounter and used his astral form to trick the Nhu'Ghari to do his bidding by making them think he was a ghost. He then began collecting the restorative volcanic gas found in the region as part of a plot to enslave humanity and had a number of balloons filled with it ready to be launched. Cyclops, Marvel Girl, Beast and Angel were soon reunited and they battled Magneto, however the fight caused volcanic instability. Although they managed to flee the slaves, the X-Men found themselves trapped. Taking Magneto and Avia with them they attempted fled the destruction in Magneto's blimp, but soon found themselves caught in a massive storm.[159] As they bucked the storm, Magneto jumped ship with Avia following after him. Angel tried to follow her but the storm was too powerful. With the blimp breaking up, each of the X-Men latched themselves to a different balloon in the hopes that they could ride the storm out and safely return to the surface. Cyclops, Beast and Marvel Girl found themselves crash landing in Africa where they were found by the young weather controlling mutant named Ororo Munroe. Cyclops was rendered unconscious in the crash.[160] The X-Men in Africa soon learned that the massive storm was being gathered by an albino mutant named Deluge who sought to get revenge against the world for the life of prejudice he had to endure.[161] The X-Men managed to defeat Deluge, with Jean using Scott's powers by telepathically controlling his unconscious brain but had to overloading Deluge's powers, seemingly slaying him in the process. Having recovered from the crash, Cyclops and the others returned to the mansion to find the Fantastic Four waiting for them.[162]

Jean Grey (Earth-616) third alternate training costume from X-Men the Hidden Years Vol 1 8

Third training costume[139]

The FF had come to Xavier to learn why he tapped their minds during the Z'Nox invasion and when the Fantastic Four's, Mister Fantastic, pointed out that the Z'Nox were still a threat the X-Men joined them on a mission into space to stop the alien invaders. Before leaving on their mission, Jean decided to change into one of her old costumes, and was mildly disturbed when the Professor briefly acted as though it was the day she first joined the team.[163] Ultimately, the Fantastic Four and the X-Men incapacitated the Z'Nox to ensure they would be a threat to no other race in the universe and returned to Earth. During this mission Jean was briefly contacted by the Phoenix Force a powerful cosmic entity which would later change her life forever. Although for the time being, Jean's memories of the encounter were erased from her memory.[164] Having a memory blank, Jean told the Professor who took her out to Moira's mutant research center for testing, but they came back negative. Jean was mildly disturbed that Professor had more secrets that he was keeping from the others. Back home, Charles took Hank with him to Iowa to make contact with a new mutant, a young girl named Ashley Martin who could control inanimate objects. The other X-Men were soon greeted by Warren's girlfriend Candy Southern who had important news for Angel, and so they began searching for him. Their search led them to a derelict ship out in the middle of the ocean. Before departing on their mission, Jean had Candy wear her green costume to disguise herself while she continued to wear her training uniform.[165] They learned that Angel was the prisoner of a mutant named Stefan Krueger who had in turn sold Warren to the Brotherhood of Evil Mutants, now led by the Blob. Seeking more money for himself and his army the Freaks, Krueger knocked out Scott, Jean and Candy to turn them over to the Brotherhood.[166]

While Cyclops, Angel, Marvel Girl, and Candy were forced to fight for their lives.[167] Soon the battle was complicated further by the arrival of Krueger, who realized that Mastermind ripped him off with illusionary money as payment for turning over the X-Men.[168] The X-Men ultimately defeated the Brotherhood and Krueger, turning them over to the authorities and recovering Avia. Back at the mansion, the X-Men were reunited with Beast who was sent back by Xavier.[169] Also rejoining them was Iceman, Havok and Angel.[170] Angel learned that Candy sought him out because his uncle Bert -- secretly the villain known as Dazzler -- was attempting to marry his mom. Reunited with Hank, who was sent back to the mansion by Charles, the X-Men rushed to the Worthington estate to try and halt the wedding.[171] Scott and the rest of the original team members went to stop the wedding. While the X-Men managed to stop Burt from marrying Warren's mother, he had been secretly poisoning her and she soon died as a result.[172]

Cyclops, Marvel Girl, Iceman and Beast returned to the mansion while Warren stayed behind to see to his mother's funeral arrangements. Learning that Havok and Lorna went out seeking the signal picked up by Cerebro Cyclops and the others went after them. In the mountains they saved Havok and Lorna from the Inhuman known as the Yeti. The Yeti was stopped by the Inhuman royal and the X-Men learned that Lorna was captured due to her resemblance to Yeti's long deceased Skrull lover. When the X-Men returned to the mansion they soon found it had been infiltrated by Kraven the Hunter.[173] Kraven sought to challenge the Beast to combat, a fight the Beast ultimately won. It was also around this time that a group of mutants calling themselves the Promise came out of a decade of cryogenic suspension and began seeking new mutants to join their cause. Their leader Tobias Messenger sought to recruit Lorna Dane as he found that the other X-Men were too indoctrinated in the philosophy of Charles Xavier to ever join his cause. As the X-Men were occupied with Kraven the Hunter, the Promise enthralled Lorna and called her to their secret headquarters.[174] The X-Men went after Lorna, but were easily incapacitated thanks to the various mental powers of the Promise. Unable to convince the other X-Men to join them, Tobias forced Lorna and Havok to be put in cryogenic suspension with them. As a last minute decision he also allowed Lucy Robinson's request to place the Angel into suspension as well.[175]

Tobias then placed the X-Men deep below the Earth in secret tunnels built by the Deviants centuries ago. Battling their way through the tunnels, the X-Men found themselves in Subterranea again and were captured by the Mole Man, who sought revenge against the mutants for his last defeat at their hands.[176] While Marvel Girl and the other fought the Mole Man and his minions, Xavier began trying to assist the Fantastic Four in fighting off the invasion.[177] Charles contacted Angel and aided him in freeing both Havok and Lorna from cryogenic suspension. with Havok revived first, Charles sent him out to help the authorities with the Atlantean invasion, only for Havok to get attacked by a mob. Angel was sent to find the X-Men, who were still battling the Mole Man.[178] While Warren managed to find the X-Men and helped them defeat the Mole Man, Xavier ultimately stopped Magneto and Namor's invasion by assisting the Fantastic Four. In the aftermath of this crisis, the Promise were freed from their cryogenic stasis and Avia was returned to the Savage Land. The X-Men later celebrated Hank's 20th birthday.[179]

The Secret Team[]

Following their trials and tribulations the X-Men went on another vacation. Scott took this time to go on a trip with his brother Alex.[180] Shortly thereafter, after another conflict with Iceman, Havok and Lorna seemingly left the X-Men.[181] However they were later kidnapped by the Secret Empire, who was secretly kidnapping mutants for their latest attempt to conquer the world.[182] Charles was later asked by NASA to mentally probe a passing comet. In doing so, it caused a chunk of alien matter to detach itself and land near the mansion. When the X-Men returned home, the alien matter stripped them of their powers just as their home was attacked by an army of Sentinels. Although powerless, the X-Men used their combat training to defend themselves and keep the Professor safe.[183] Realizing the X-Men no longer had mutant powers, the Sentinels ended their attack and instead targeted Quicksilver and the Scarlet Witch. The X-Men came to their rescue, and they soon found their powers were not only returning but becoming more enhanced at a rapid rate. Scott's own optic blasts were enhanced to a more powerful level and he was also now able to control his blasts without a ruby quartz visor. Charles soon detected the alien matter thanks to his increasing mental talents, and realizing that this increase in power could be dangerous had his X-Men eject the alien matter ejected into space, causing the team to revert their normal power levels and limitations.[184] However the alien matter had an impact on the Nexus of All Realities located in a Florida swamp causing a disruption in time in space. Charles sent his X-Men to investigate and they were sucked into various portals to possible future realities. Jean was trapped in a possible future of Earth-8038 where she became the Dark Phoenix and slew the X-Men. Channeling his mental powers through the Man-Thing -- the guardian of the Nexus -- Charles helped rescue his students and close off the rift.[185] The X-Men were later called into New York by the Continuiteens who detected a disruption in reality. The X-Men uncovered that it was the work of Spider-Man's foe Mysterio who had stolen swamp water from the Nexus zone to alter reality.[186]

Also around this time, Moira MacTaggart was locating and recruiting new mutants to be trained at her mutant research center on Muir Island. These mutants included the geo-morph known as Petra,[187] the chronokinetic Sway,[188] the evolutionary powered Darwin,[189] and the energy absorber known as Kid Vulcan. Charles took a particular interest in Vulcan due to his lost memories and his ability to manipulate energy. He introduced Vulcan to the X-Men and had him train under Cyclops, noting that he had control over Cyclops' powers. Charles soon desired to make Kid Vulcan a member of his X-Men.[190] Later, Charles had Beast lead the X-Men on a series of investigations of alien sightings on the behalf of the mysterious Agent Baker, who ceased being an FBI liaison with the team shortly thereafter.[191] Scott and Jean later went on a date.[192] After hearing reports that the Scarlet Witch had joined the Avengers, they began to wonder what the future had in store for them.[193] They got an answer when they happened to encounter the Man-Thing once again and the creature gave them glimpses of the future that showed that they were still members of the X-Men, leading a brand new team of mutants.[194]

Secret Empire[]

With the rest of his team reaching the final stretch of their college education, Jean's powers began acting out, pulling her teammates into her dreams where they faced various threats. While Charles was secretly away on Muir Island, the X-Men began being attacked by a series of threats in the physical world including rampant Danger Room robots, a returned Frederick,[192] and strange phantoms of the Juggernaut and an apparent "magnetic ghost" of Magneto. All were either drawn in, or created by Jean's mental powers.[193] Charles returned to find his school in shambles. He called the X-Men back and learned of the recent attacks on the school. After advising his team that he intended to expand the scope of his school to an international level and focus primarily in training new mutants to control their powers and defend themselves, Charles and the others soon realized that the strange phantom attacks were coming from Jean's mind.[195] Charles and his students then ventured into Jean's mind and helped her cope with her fears. Jean also finally let go of the guilt she felt over Annie Richardson's accident. With the crisis averted, the X-Men were soon graduated from their classes.[196] Following graduation, Hank was offered a position with the Brand Corporation. Jean and the X-Men bid the Beast farewell as he went on to a new life. Shortly thereafter, Hank accidentally mutated himself further into a more bestial form, a transformation he kept secret from everybody, including Charles and the X-Men. Also unknown to all at the time the Brand Corporation was a target of the Secret Empire.[197]

Not long after this, Charles old colleague Hans Jorgenson had been kidnapped and that Spider-Man was being blamed. Charles sent the X-Men out to find Spider-Man. The group soon learned that Spider-Man was not responsible for the kidnapping, but was seeking out Jorgenson to help cure him of an mystery illness plaguing him. The X-Men and Spider-Man soon discovered that Jorgenson was kidnapped by Spider-Man's foe Morbius the Living Vampire and rescued him. Xavier and Jorgenson worked to cure Spider-Man of his illness using the enzymes in Morbius' blood. Charles then contained Morbius at the mansion for a time.[198] Not long after this the Beast was also captured by the Secret Empire.[199] Magneto resurfaced shortly thereafter and attacked the X-Men directly, incapacitating the group and using his magnetic powers to enslave Marvel Girl and most of the X-Men. Magneto then lured the Avengers into a trap, capturing the Scarlet Witch, Captain America, and Iron Man in the process.[200] Unknown to anyone at the time the Angel was captured by the Secret Empire during this attack.[182] The captive X-Men and Avengers were later rescued by the uncaptured Avengers along with the Black Widow and Daredevil. In the aftermath of the battle Charles and his students began trying to learn what happened to the Angel.[201] With mutants still going missing, Charles assigned Cyclops, Iceman and Marvel Girl to check in on their various allies and enemies. Iceman went missing shortly thereafter.[199]

Taking a more proactive approach, Charles, Cyclops and Marvel Girl began a search for their missing allies. Their search took them to the southwest where they encountered the Juggernaut in the middle of a battle with the Hulk. Professor X and his students incapacitated the Juggernaut and allowed the Hulk to go free before resuming their search.[202] They tracked their old ally the Banshee down to Nashville, where they found him in the middle of a battle with Captain America and his partner the Falcon. Believing that the X-Men, Cap and Falcon were out to capture him, the Banshee fled the scene. Charles soon learned that Captain America and Falcon were also seeking to stop the Secret Empire and an alliance was formed.[203] The heroes were soon attacked by Nick Fury and a team of SHIELD agent. Charles used his mental powers to shield his presence to keep his ties with the X-Men a secret and they made a hasty escape. Comparing notes, Charles suggested they try and determine the connection between the Secret Empire and the Beast's girlfriend Linda Donaldson who Charles tracked to the area. Cyclops then staged an attack on her while a disguised Cap and Falcon came to her rescue, posing as men seeking work. She quickly offered them a job, revealing herself as an agent of the Secret Empire, and they were hired to steal an electro-gyro from the Brand Corporation. This theft was a success and when Cap and Falcon were taken to the Secret Empire's secret hideout, Charles and his remaining students followed.[204]

However, the plan went awry as the Secret Empire saw through the deception and attempted to capture Cap and the Falcon, Charles and his students came to their rescue. The heroes soon found the captured X-Men as well as Blob, Unus, Mastermind and Mesmero were also prisoners and that the Secret Empire was using their mental energies to power a weapon. Before the captured mutants could be freed the Secret Empire seemingly slew heroes with an atomic annihilator weapon.[182] However the Empire had been infiltrated by SHIELD agents Gabe Jones and Peggy Carter who were controlling the cannon and fired a non-lethal blast. Getting X-Men and the others to cover, they regrouped and battled the Secret Empire when they attempted to storm the White House. While the X-Men freed their allies and defeated the Empire, Cap exposed their leader as a high ranking government official who committed suicide rather than face capture.[205][206]

Second Genesis[]

Charles soon became aware of a mutant signature on the island of Krakoa,[207] and had his X-Men reunited and sent on a mission to investigate the island.[208][207][196] Soon the X-Men arrived on Krakoa and realized that the entire island was actually a massive mutant form. The creature attacked them out right and captured them, cutting off their connection with Professor X.[207] Xavier sought out Moira and asked her to allow him to use her students to rescue his team of X-Men. Moira reluctantly allowed this when Kid Vulcan and the other students agreed to help Charles. In order to fast track their training, Charles put them through a virtual training with his mental powers, giving these students months of training in just hours. Before sending these novice X-Men on their mission to save the others, Charles revealed to Kid Vulcan that he had discovered that Cyclops was his brother. These new X-Men proved to be no match for the island of Krakoa, and only succeeded in freeing Cyclops, sending him away while the group seemingly sacrificed their lives to cover his escape. When Cyclops returned to the Mansion and told Charles what happened, Xavier realized the grave error he made. Not wishing Scott to live with the grief of losing the brother he never knew, Charles erased all memory of this novice group of X-Men from the minds of Cyclops and Moira and began planning another rescue mission. To this end, Charles altered Scott's memories to make him believe that Krakoa released him in order to lure more mutants to the island to feed off their mutant energies.[209] Scott's mutant energies had been trained by Krakoa while he was its prisoner, causing him to lose his powers briefly. When they did return, they were stronger than ever, and Charles created a new visor that could handle the increase in power.

Charles then gathered various mutants from around the globe to help rescue the captured X-Men. The new recruits included former allies Banshee, and Sunfire, as well as mutants the X-Men previously met such as the African weather controlling mutant Ororo Munroe later called Storm, and Logan who was the Canadian government operative known as Wolverine. Charles also recruited previously uninitiated mutants such as the Piotr Rasputin (codenamed Colossus) who could turn into organic steel, teleporter Kurt Wagner (codenamed Nightcrawler), and the superhumanly strong Native American John Proudstar (codenamed Thunderbird). This new team of X-Men proved more successful, rescuing the original team, and defeating Krakoa by jettisoning the island out into space.[210][211] Charles used his mental powers to cover up the apparent death of Kid Vulcan's entire team, a shame that Charles kept secret for years.[212] Upon their return from their mission, Charles invited everyone to remain with the X-Men, however most of the original team -- save for Cyclops -- left to pursue their own lives. Sunfire also decided to depart from the group, having no desire to be part of the team, having only agreed to help Xavier free the X-Men. Storm, Colossus, Wolverine, Banshee, Nightcrawler and Thunderbird all agreed to stay. Soon Charles and Cyclops began training this new generation of X-Men, who would become legends in their own right.[213] Although Jean had left the group, she would not stay away for long due to her continued relationship with Cyclops.


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 X-Men Origins: Jean Grey #1
  2. 2.0 2.1 Bizarre Adventures #27
  3. Classic X-Men #43
  4. 4.0 4.1 4.2 X-Men: The Wedding Album #1
  5. Uncanny X-Men #273
  6. Classic X-Men #42
  7. Uncanny X-Men #-1: This "falling star" was actually Rachel Summers, the daughter of Jean and Scott Summers in the future of Earth-811. At that time, Rachel was a member of the Clan Askani in the distant future of Earth-4935. Rachel had traveled back in time to stop her fellow clan member Sister Sanctity from altering the course of history.
  8. X-Men Forever #3 & X-Men Forever #4: Jean's future self was being sent through time by the sentient machine known as Prosh along with her fellow X-Man Iceman, as well as their foes Mystique, the Juggernaut, and Toad to find the keys to preserving human evolution, as seen in X-Men Forever.
  9. 9.0 9.1 9.2 9.3 X-Men #1
  10. Uncanny X-Men #322
  11. Official Handbook of the Marvel Universe Master Edition #23
  12. 12.0 12.1 12.2 X-Men: Legacy #208
  13. 13.0 13.1 13.2 X-Men First Class #1
  14. X-Men #2
  15. Tales of Suspense #49
  16. Sentry/X-Men #1: The X-Men were forced to forget the existence of the Sentry as per the events of Sentry #1.
  17. X-Men #3
  18. Thor Corps #3: This time disruption was caused by Demonstaff who was later defeated by the Thor Corps in Thor Corps #4.
  19. X-Men: Odd Men Out #1
  20. 20.0 20.1 20.2 X-Men #4
  21. X-Men: Legacy #209
  22. Avengers Origins: The Scarlet Witch & Quicksilver #1
  23. Avengers #234
  24. X-Men #5
  25. Fantastic Four #28
  26. 26.0 26.1 26.2 Marvels #2
  27. 27.0 27.1 Unlimited Access #4
  28. Unlimited Access #3
  29. X-Men #6
  30. Journey Into Mystery #109
  31. Excalibur XX Crossing #1
  32. Excalibur XX Crossing #1: Excalibur earned the ire of Dr. Doom in Excalibur #37 through 39.
  33. X-Men: Endangered Species #1
  34. Classic X-Men #17
  35. All-New X-Men #1
  36. All-New X-Men #4
  37. All-New X-Men #5
  38. All-New X-Men #6
  39. Battle of the Atom
  40. All-New X-Men #22.NOW
  41. Guardians of the Galaxy (Vol. 3) #13
  42. All-New X-Men (Vol. 2) #1
  43. Extraordinary X-Men #1
  44. IVX #6
  45. All-New X-Men (Vol. 2) #19
  46. Jean Grey #18
  47. Generations: Phoenix & Jean Grey #1
  48. Jean Grey #10
  49. Jean Grey #11
  50. X-Men: Blue Annual #1
  51. X-Men: Blue #21
  52. Venom #162
  53. X-Men: Blue #22
  54. Venom #163
  55. Venomized #35
  56. Extermination #5
  57. 57.0 57.1 57.2 57.3 X-Men #7
  58. X-Men Origins: Cyclops #1
  59. X-Men #8
  60. Untold Tales of Spider-Man #21
  61. Untold Tales of Spider-Man '97 #1
  62. X-Men #9: Lucifer crippled Charles while he traveled through Tibet a number of years before he formed the X-Men, as depicted in X-Men #20.
  63. X-Men: Gold #1
  64. Fantastic Four #36
  65. X-Men #10
  66. X-Men First Class #2
  67. X-Men First Class (Vol. 2) #10
  68. X-Men #11
  69. 69.0 69.1 X-Men First Class #7
  70. X-Men #12
  71. X-Men #13
  72. 72.0 72.1 X-Men #32
  73. 73.0 73.1 73.2 X-Men #14
  74. X-Men First Class #6
  75. X-Men First Class #8
  76. X-Men First Class (Vol. 2) #9
  77. X-Men First Class #5
  78. X-Men First Class (Vol. 2) #2
  79. 79.0 79.1 X-Men First Class (Vol. 2) #3
  80. X-Men Forever #3
  81. 81.0 81.1 Fantastic Four Annual #3
  82. 82.0 82.1 Marvel: Heroes & Legends #1
  83. X-Men #15
  84. X-Men #16
  85. X-Men #17
  86. X-Men #18
  87. X-Men First Class (Vol. 2) #12
  88. X-Men First Class (Vol. 2) #13: Agent Baker turned out to be a Skrull spy as revealed in X-Men First Class Special #1.
  89. X-Men First Class (Vol. 2) #14
  90. X-Men First Class (Vol. 2) #15: Medusa is the member of the Inhumans. She was originally found by the Wizard with amnesia and recruited into the Frightful Four in Fantastic Four #36. This story takes place after the Frightful Four were defeated by the Fantastic Four in Fantastic Four #43. Medusa eventually regains her memories and rejoins in the Inhumans in Fantastic Four #44. The reason Angel returned to the X-Men was because he was going to be placed in an arranged marriage if he remained in the Valley of Mist.
  91. X-Men First Class (Vol. 2) #1
  92. X-Men #19
  93. Marvel Comics Presents #59
  94. X-Men #20
  95. X-Men #21
  96. X-Men First Class (Vol. 2) #5
  97. X-Men #22
  98. X-Men #23
  99. X-Men #24
  100. X-Men First Class #3
  101. X-Men #25
  102. X-Men #26
  103. 103.0 103.1 X-Men #27
  104. X-Men #28
  105. X-Men #29: The Super-Adaptoid went into hiding after it erroneously believed slew Captain America in Tales of Suspense #84. It would later be reactivated by AIM in Avengers: Earth's Mightiest Heroes II #1. Mimic's powers eventually returned as revealed in Incredible Hulk #161.
  106. X-Men #30
  107. 107.0 107.1 X-Men Unlimited #42
  108. X-Men #31
  109. X-Men #33
  110. X-Men #34: This was temporary and both Tyrannus and the Mole Man's memories eventually returned as explained in X-Men: The Hidden Years #21.
  111. X-Men #35
  112. X-Men #36
  113. X-Men #37
  114. X-Men #38
  115. 115.0 115.1 X-Men #39
  116. X-Men First Class #4
  117. X-Men First Class Special #1
  118. 118.0 118.1 X-Men #65
  119. X-Men #40: This story suggests that the Frankenstein's Monster featured in Mary Shelly's Frankenstein was really an alien robot. However it was later revealed that in the Earth-616 universe the Frankenstein's Monster really existed as clarified in Silver Surfer #7.
  120. X-Men #41
  121. X-Men #42
  122. X-Men #43
  123. X-Men #44
  124. X-Men #45
  125. Avengers #53: Magneto survived this blast as revealed in X-Men #63 as he was washed away to the Savage Land.
  126. Domination Factor: Avengers #2.4
  127. X-Men #46
  128. X-Men #48
  129. X-Men #49
  130. X-Men #50: This was not the true Magneto but an android, as revealed in X-Men #58. The Magneto android and the Demi-Men army that Mesmero commanded were created by Samuel Saxon, later the Machinesmith. This was never depicted but stated in Official Handbook of the Marvel Universe #7 and other subsequent Marvel Handbooks.
  131. X-Men #51
  132. X-Men #52: While these documents revealed that Lorna Dane's biological parents were Suzanna and Arnold, it turns out that Mesmero's claims were actually correct. As X-Factor #243 later revealed, Lorna's mother Suzanna had an affair with Magneto, becoming pregnant with Lorna. Suzanna attempted to hide this from her husband, hence the incorrect birth records. The plane crash that killed her parents that is referenced in X-Men Vol 1 52 was revealed to have been caused Arnold as seen in X-Factor Vol 1 243 when he learned of his wife's infidelity.
  133. Avengers #60
  134. Avengers: Earth's Mightiest Heroes II #6
  135. X-Men #53: Blastaar was really shunted back into the Negative Zone as seen in Incredible Hulk #113.
  136. X-Men #54
  137. X-Men #55: It was later revealed in Uncanny X-Men #376 that Living Pharaoh's powers were tied to Alex Summers thanks to the genetic manipulations of Mister Sinister. The purpose was to used the Pharaoh as an energy battery to channel energy into an ascension machine built by Sinister for his master Apocalypse for a ritual called The Gathering of the Twelve which would happen many years later.
  138. X-Men #56
  139. 139.0 139.1 X-Men: The Hidden Years #8
  140. X-Men #57
  141. X-Men #58
  142. X-Men #59
  143. X-Men #60
  144. X-Men #61: X-Men #114 and X-Men: The Hidden Years #6 revealed that Lykos survived the fall and sought refuge in the Savage Land
  145. X-Men #62: Magneto is not recognized here because he is not wearing his trademark costume and helmet. The costume that he gives Angel is a means to siphon his mutant energies and boost Magneto's then failing powers as revealed in Avengers #111.
  146. X-Men #63: Magneto of course survived this defeat as well. As depicted in X-Men: The Hidden Years #4 the ground under him gave way and he was swept away in an underground river ending up in the realm of the Nhu'Ghari
  147. X-Men #64: This story states that Sunfire's mother was a survivor of the bombing of Hiroshima while pregnant with Sunfire. This radiation caused Shiro to gain his mutant powers. Even Official Handbook of the Marvel Universe A to Z #11 states this. However per the Sliding Timescale of Earth-616 as the modern age slides forward it will be impossible that Shiro's mother could have been present and survived the atomic bomb blast during World War II without drastically aging the character. Short of an official explanation this should be considered a topical reference. As such it could be logically assumed that while Sunfire was avenging the nuclear bomb drops of World War II, the very personal reason can be ascribed to a relative as opposed to his mother.
  148. X-Men #66
  149. 149.0 149.1 149.2 X-Men: The Hidden Years #1
  150. X-Men / Spider-Man #1: Unknown to anyone at the time Kraven was hired by Mister Sinister to lure the X-Men into a trap so that he could collect their DNA. This was part of a long running scheme that eventually led to the creation of Xraven, a clone of Kraven with all the powers of the original X-Men as seen in X-Men / Spider-Man #4.
  151. Fantastic Four: World's Greatest Comics Magazine #3
  152. Fantastic Four: World's Greatest Comics Magazine #4
  153. Fantastic Four: World's Greatest Comics Magazine #10
  154. Fantastic Four: World's Greatest Comics Magazine #11
  155. Fantastic Four: World's Greatest Comics Magazine #12
  156. X-Men (Vol. 2) #94: The X-Men captured the Sentinel ships at the end of X-Men #59.
  157. X-Men: The Hidden Years #2
  158. X-Men: The Hidden Years #3
  159. X-Men: The Hidden Years #4
  160. X-Men: The Hidden Years #5
  161. X-Men: The Hidden Years #6
  162. X-Men: The Hidden Years #7
  163. X-Men: The Hidden Years #8: Xavier's memory lapse was a side effect of the gamma device that saved his life in X-Men #66. This plotline was eventually dropped when X-Men: The Hidden Years was cancelled.
  164. X-Men: The Hidden Years #9: Jean would be replaced by the Phoenix Force in X-Men #101 and believed dead when the Phoenix died in X-Men #137 until Jean was found alive in Fantastic Four #286.
  165. X-Men: The Hidden Years #10: After jumping ship in X-Men: The Hidden Years #5, Warren and Avia were found by fishermen, who then sold them to a man named Stefan Krueger in X-Men: The Hidden Years #6 and 7.
  166. X-Men: The Hidden Years #11
  167. X-Men: The Hidden Years #12
  168. X-Men: The Hidden Years #13
  169. X-Men: The Hidden Years #14: Havok, Lorna and Iceman were all in the Savage Land searching for the other X-Men between X-Men: The Hidden Years #2 through 13.
  170. X-Men: The Hidden Years #14
  171. X-Men: The Hidden Years #14: Bert Worthington became the Dazzler in Ka-Zar #2 an slew Warren's father Warren Worthington Jr.. Angel seemingly slew Dazzler in Marvel Tales (Vol. 2) #30.
  172. X-Men: The Hidden Years #15
  173. X-Men: The Hidden Years #16: As per Marvel: The Lost Generation #12 Yeti was a member of the First Line a group of heroes that predated the modern age of heroes. Yeti betrayed his teammates during an attempted Skrull invasion of Earth that led to the demise of that team. Havok and Lorna first learned of the mutant signal in X-Men: The Hidden Years #13 and went to investigate in X-Men: The Hidden Years #15.
  174. X-Men: The Hidden Years #17
  175. X-Men: The Hidden Years #18
  176. X-Men: The Hidden Years #19
  177. X-Men: The Hidden Years #20: This story takes place at the same time as Fantastic Four #102.
  178. X-Men: The Hidden Years #21: This story takes place at the same time as Fantastic Four #103.
  179. X-Men: The Hidden Years #22: This story takes place at the same time as Fantastic Four #104.
  180. X-Men First Class (Vol. 2) #4
  181. Incredible Hulk #150
  182. 182.0 182.1 182.2 Captain America #174
  183. X-Men First Class (Vol. 2) #6
  184. X-Men First Class (Vol. 2) #7
  185. X-Men First Class (Vol. 2) #8
  186. X-Men First Class (Vol. 2) #11
  187. X-Men: Deadly Genesis #1
  188. X-Men: Deadly Genesis #2
  189. X-Men: Deadly Genesis #3
  190. X-Men: Deadly Genesis #4
  191. X-Men: First Class Giant-Size Special #1: This story revealed that Agent Baker was a Skrull, part of an early run for for their Secret Invasion of Earth.
  192. 192.0 192.1 X-Men: First Class Finals #1
  193. 193.0 193.1 X-Men: First Class Finals #2
  194. [1]. These new X-Men were depicted as the team gathered in Giant-Size X-Men #1.
  195. X-Men: First Class Finals #3
  196. 196.0 196.1 X-Men: First Class Finals #4
  197. Amazing Adventures (Vol. 2) #11
  198. Marvel Team-Up #4: Spider-Man's occurred when he tried to cure himself of his spider powers in Amazing Spider-Man #100 & Amazing Spider-Man #101. Instead of curing himself he grew four extra arms. Spider-Man reversed this mutation using some of Morbius' blood in Amazing Spider-Man #102. It was the enzymes in this blood that was threatening Spider-Man's life in this story.
  199. 199.0 199.1 Captain America #173
  200. Avengers #110
  201. Avengers #111
  202. Incredible Hulk #172
  203. Captain America #172: At the time Captain America was framed for murder by the Secret Empire as part of a plot to take over America starting in Captain America #170.
  204. Captain America #173: Linda Donaldson began romancing Henry McCoy in Amazing Adventures (Vol. 2) #11 as part of her mission as a spy for the Secret Empire to steal the Brand Corporation secrets.
  205. Captain America #175: This story makes numerous references to the Watergate scandal and heavily suggests that the leader of the Secret Empire was resigned US President Richard Nixon. These should be considered topical references relevant to the time of publication and are subject to the Sliding Timescale. Subsequent references to this story in Avengers: Forever #2 generalizes the Secret Empire's leader to a "high ranking government official".
  206. Marvels: Eye of the Camera #2
  207. 207.0 207.1 207.2 Giant-Size X-Men #1
  208. Marvel Team-Up #23
  209. X-Men: Deadly Genesis #6: Charles learned that Kid Vulcan was the brother of Cyclops due to their similar mental patterns. He would not know until years later that Kid Vulcan was the unborn child of Christopher and Katherine Summers who was harvested from Katherine's dead body after they were captured by the Shi'ar years ago. Gabriel was artificially aged and made a slave of Erik the Red, a Shi'ar spy active on Earth until he eventually escaped many years later. While Petra and Sway were killed by Krakoa, Kid Vulcan and Darwin survived thanks to Darwin's powers. Darwin absorbed his comrades powers and merged with Vulcan, pulling him below the surface of Krakoa where they remained in stasis for years.
  210. Giant-Size X-Men #1: Although this story indicates that this was the first time Charles contacted many of these new X-Men, various tales reveal that this is not the case. Charles first met Storm when she was a young pickpocket in Cairo, Egypt per X-Men #117 a fact that Charles did not realize until some time after Storm joined the X-Men. It was also implied that Charles was attempting to track her down after he formed the X-Men in X-Men First Class #8. Charles' original students also encountered Storm on their own in X-Men: The Hidden Years #5 through 8. Wolverine apparently met Charles on two --albeit conflicting-- occasions. The earliest was in First X-Men #1 taking place when Charles was still at Oxford University. At that time Logan was recruiting his own team of mutants, which Charles refused to join. Excalibur (Vol. 3) #14 states that Logan fought with Charles during the time in the military, however this was contradicted in the First X-Men series which states that Logan was still gathering mutants while Charles was in the military. Wolverine's inability to recognize Xavier in Giant-Size X-Men Vol 1 1 is due to various memory losses as a result of his own mutant powers (as first implied in Wolverine: The Origin #1 and later in Wolverine: Origins #1) and more recently thanks to the memory implants and manipulations of the Weapon X Project as seen in Marvel Comics Presents #72 through 84. Charles was revealed to know about the other members of this new team of X-Men many years earlier per the flashback in Uncanny X-Men #300.
  211. Classic X-Men #1
  212. X-Men: Deadly Genesis #6: The only record of Kid Vulcan was a recording that Moira MacTaggert made before Charles wiped her mind as revealed in that issue. Moira never uncovered the recording as she later died in X-Men (Vol. 2) #108. When Kid Vulcan was awoken in X-Men: Deadly Genesis #1 the recording was later uncovered by Banshee.
  213. X-Men #94