Publisher: Marvel Comics
Status: Finished
Type: Ongoing Series (Team)
Publication Date: September, 1963—January, 1981
Genre: Super Hero
Featuring: X-Men
Nos. 1–63 (1960s)
X-Men #1
"X-Men"
Release date: July 2, 1963
Cover date: September, 1963
"X-Men"
Release date: July 2, 1963
Cover date: September, 1963
X-Men #2
"No One Can Stop the Vanisher!"
Release date: September 3, 1963
Cover date: November, 1963
"No One Can Stop the Vanisher!"
Release date: September 3, 1963
Cover date: November, 1963
X-Men #3
"Beware of the Blob!"
Release date: November 5, 1963
Cover date: January, 1964
"Beware of the Blob!"
Release date: November 5, 1963
Cover date: January, 1964
X-Men #4
"The Brotherhood of Evil Mutants!"
Release date: January 3, 1964
Cover date: March, 1964
"The Brotherhood of Evil Mutants!"
Release date: January 3, 1964
Cover date: March, 1964
X-Men #5
"Trapped: One X-Man"
Release date: March 3, 1964
Cover date: May, 1964
"Trapped: One X-Man"
Release date: March 3, 1964
Cover date: May, 1964
X-Men #6
"Sub-Mariner Joins the Evil Mutants!"
Release date: May 5, 1964
Cover date: July, 1964
"Sub-Mariner Joins the Evil Mutants!"
Release date: May 5, 1964
Cover date: July, 1964
X-Men #7
"The Return of the Blob"
Release date: July 2, 1964
Cover date: September, 1964
"The Return of the Blob"
Release date: July 2, 1964
Cover date: September, 1964
X-Men #8
"The Uncanny Threat of...Unus, the Untouchable!"
Release date: September 1, 1964
Cover date: November, 1964
"The Uncanny Threat of...Unus, the Untouchable!"
Release date: September 1, 1964
Cover date: November, 1964
X-Men #9
"Enter, the Avengers"
Release date: November 3, 1964
Cover date: January, 1965
"Enter, the Avengers"
Release date: November 3, 1964
Cover date: January, 1965
X-Men #10
"The Coming of... Ka-Zar!"
Release date: January 5, 1965
Cover date: March, 1965
"The Coming of... Ka-Zar!"
Release date: January 5, 1965
Cover date: March, 1965
X-Men #11
"The Triumph of Magneto"
Release date: March 4, 1965
Cover date: May, 1965
"The Triumph of Magneto"
Release date: March 4, 1965
Cover date: May, 1965
X-Men #12
"The Origin of Professor X!"
Release date: May 4, 1965
Cover date: July, 1965
"The Origin of Professor X!"
Release date: May 4, 1965
Cover date: July, 1965
X-Men #13
"Where Walks the Juggernaut"
Release date: July 1, 1965
Cover date: September, 1965
"Where Walks the Juggernaut"
Release date: July 1, 1965
Cover date: September, 1965
X-Men #14
"Among Us Stalk... the Sentinels"
Release date: September 2, 1965
Cover date: November, 1965
"Among Us Stalk... the Sentinels"
Release date: September 2, 1965
Cover date: November, 1965
X-Men #15
"Prisoners of the Mysterious Master Mold!"
Release date: October 5, 1965
Cover date: December, 1965
"Prisoners of the Mysterious Master Mold!"
Release date: October 5, 1965
Cover date: December, 1965
X-Men #16
"The Supreme Sacrifice!"
Release date: November 4, 1965
Cover date: January, 1966
"The Supreme Sacrifice!"
Release date: November 4, 1965
Cover date: January, 1966
X-Men #17
"...And None Shall Survive!"
Release date: December 2, 1965
Cover date: February, 1966
"...And None Shall Survive!"
Release date: December 2, 1965
Cover date: February, 1966
X-Men #18
"If Iceman Should Fail..!"
Release date: January 4, 1966
Cover date: March, 1966
"If Iceman Should Fail..!"
Release date: January 4, 1966
Cover date: March, 1966
X-Men #19
"Lo! Now Shall Appear -- The Mimic!"
Release date: February 3, 1966
Cover date: April, 1966
"Lo! Now Shall Appear -- The Mimic!"
Release date: February 3, 1966
Cover date: April, 1966
X-Men #20
"I, Lucifer..."
Release date: March 3, 1966
Cover date: May, 1966
"I, Lucifer..."
Release date: March 3, 1966
Cover date: May, 1966
X-Men #21
"From Whence Comes...Dominus?"
Release date: April 5, 1966
Cover date: June, 1966
"From Whence Comes...Dominus?"
Release date: April 5, 1966
Cover date: June, 1966
X-Men #22
"Divided--We Fall!"
Release date: May 3, 1966
Cover date: July, 1966
"Divided--We Fall!"
Release date: May 3, 1966
Cover date: July, 1966
X-Men #23
"To Save a City"
Release date: June 2, 1966
Cover date: August, 1966
"To Save a City"
Release date: June 2, 1966
Cover date: August, 1966
X-Men #24
"The Plague of... the Locust!"
Release date: June 30, 1966
Cover date: September, 1966
"The Plague of... the Locust!"
Release date: June 30, 1966
Cover date: September, 1966
X-Men #25
"The Power and the Pendant!"
Release date: August 2, 1966
Cover date: October, 1966
"The Power and the Pendant!"
Release date: August 2, 1966
Cover date: October, 1966
X-Men #26
"Holocaust!"
Release date: September 1, 1966
Cover date: November, 1966
"Holocaust!"
Release date: September 1, 1966
Cover date: November, 1966
X-Men #27
"Re-enter: The Mimic!"
Release date: October 11, 1966
Cover date: December, 1966
"Re-enter: The Mimic!"
Release date: October 11, 1966
Cover date: December, 1966
X-Men #28
"The Wail of the Banshee!"
Release date: November 3, 1966
Cover date: January, 1967
"The Wail of the Banshee!"
Release date: November 3, 1966
Cover date: January, 1967
X-Men #29
"When Titans Clash!"
Release date: December 8, 1966
Cover date: February, 1967
"When Titans Clash!"
Release date: December 8, 1966
Cover date: February, 1967
X-Men #30
"The Warlock Wakes!"
Release date: January 10, 1967
Cover date: March, 1967
"The Warlock Wakes!"
Release date: January 10, 1967
Cover date: March, 1967
X-Men #31
"We Must Destroy... The Cobalt Man!"
Release date: February 14, 1967
Cover date: April, 1967
"We Must Destroy... The Cobalt Man!"
Release date: February 14, 1967
Cover date: April, 1967
X-Men #32
"Beware the Juggernaut, My Son!"
Release date: March 14, 1967
Cover date: May, 1967
"Beware the Juggernaut, My Son!"
Release date: March 14, 1967
Cover date: May, 1967
X-Men #33
"Into the Crimson Cosmos!"
Release date: April 11, 1967
Cover date: June, 1967
"Into the Crimson Cosmos!"
Release date: April 11, 1967
Cover date: June, 1967
X-Men #34
"War -- in a World of Darkness!"
Release date: May 9, 1967
Cover date: July, 1967
"War -- in a World of Darkness!"
Release date: May 9, 1967
Cover date: July, 1967
X-Men #35
"Along Came a Spider..."
Release date: June 8, 1967
Cover date: August, 1967
"Along Came a Spider..."
Release date: June 8, 1967
Cover date: August, 1967
X-Men #36
"Mekano Lives!"
Release date: July 11, 1967
Cover date: September, 1967
"Mekano Lives!"
Release date: July 11, 1967
Cover date: September, 1967
X-Men #37
"We, the Jury..."
Release date: August 8, 1967
Cover date: October, 1967
"We, the Jury..."
Release date: August 8, 1967
Cover date: October, 1967
X-Men #38
"The Sinister Shadow of... Doomsday!"
Release date: September 7, 1967
Cover date: November, 1967
"The Sinister Shadow of... Doomsday!"
Release date: September 7, 1967
Cover date: November, 1967
X-Men #39
"The Fateful Finale!"
Release date: October 10, 1967
Cover date: December, 1967
"The Fateful Finale!"
Release date: October 10, 1967
Cover date: December, 1967
X-Men #40
"The Mark of the Monster!"
Release date: November 9, 1967
Cover date: January, 1968
"The Mark of the Monster!"
Release date: November 9, 1967
Cover date: January, 1968
X-Men #41
"Now Strikes...the Sub-Human!"
Release date: December 12, 1967
Cover date: February, 1968
"Now Strikes...the Sub-Human!"
Release date: December 12, 1967
Cover date: February, 1968
X-Men #42
"If I Should Die...!"
Release date: January 9, 1968
Cover date: March, 1968
"If I Should Die...!"
Release date: January 9, 1968
Cover date: March, 1968
X-Men #43
"The Torch Is Passed...!"
Release date: February 8, 1968
Cover date: April, 1968
"The Torch Is Passed...!"
Release date: February 8, 1968
Cover date: April, 1968
X-Men #44
"Red Raven, Red Raven...!"
Release date: March 7, 1968
Cover date: May, 1968
"Red Raven, Red Raven...!"
Release date: March 7, 1968
Cover date: May, 1968
X-Men #45
"When Mutants Clash!"
Release date: April 9, 1968
Cover date: June, 1968
"When Mutants Clash!"
Release date: April 9, 1968
Cover date: June, 1968
X-Men #46
"The End of the X-Men!"
Release date: May 9, 1968
Cover date: July, 1968
"The End of the X-Men!"
Release date: May 9, 1968
Cover date: July, 1968
X-Men #47
"The Warlock Wears Three Faces!"
Release date: June 11, 1968
Cover date: August, 1968
"The Warlock Wears Three Faces!"
Release date: June 11, 1968
Cover date: August, 1968
X-Men #48
"Beware Computo, Commander of the Robot Hive!"
Release date: July 16, 1968
Cover date: September, 1968
"Beware Computo, Commander of the Robot Hive!"
Release date: July 16, 1968
Cover date: September, 1968
X-Men #49
"Who Dares Defy... the Demi-Men"
Release date: August 3, 1968
Cover date: October, 1968
"Who Dares Defy... the Demi-Men"
Release date: August 3, 1968
Cover date: October, 1968
X-Men #50
" -- Hail, Queen of Mutants!"
Release date: September 10, 1968
Cover date: November, 1968
" -- Hail, Queen of Mutants!"
Release date: September 10, 1968
Cover date: November, 1968
X-Men #51
"The Devil Had a Daughter!"
Release date: October 10, 1968
Cover date: December, 1968
"The Devil Had a Daughter!"
Release date: October 10, 1968
Cover date: December, 1968
X-Men #52
"Twilight of the Mutants!"
Release date: November 12, 1968
Cover date: January, 1969
"Twilight of the Mutants!"
Release date: November 12, 1968
Cover date: January, 1969
X-Men #53
"The Rage of Blastaar!"
Release date: December 12, 1968
Cover date: February, 1969
"The Rage of Blastaar!"
Release date: December 12, 1968
Cover date: February, 1969
X-Men #54
"Wanted: Dead or Alive... Cyclops!"
Release date: January 9, 1969
Cover date: March, 1969
"Wanted: Dead or Alive... Cyclops!"
Release date: January 9, 1969
Cover date: March, 1969
X-Men #55
"The Living Pharaoh!"
Release date: February 11, 1969
Cover date: April, 1969
"The Living Pharaoh!"
Release date: February 11, 1969
Cover date: April, 1969
X-Men #56
"What is...the Power?"
Release date: March 12, 1969
Cover date: May, 1969
"What is...the Power?"
Release date: March 12, 1969
Cover date: May, 1969
X-Men #57
"The Sentinels Live!"
Release date: April 10, 1969
Cover date: June, 1969
"The Sentinels Live!"
Release date: April 10, 1969
Cover date: June, 1969
X-Men #58
"Mission: Murder!"
Release date: May 13, 1969
Cover date: July, 1969
"Mission: Murder!"
Release date: May 13, 1969
Cover date: July, 1969
X-Men #59
"Do or Die, Baby!"
Release date: June 17, 1969
Cover date: August, 1969
"Do or Die, Baby!"
Release date: June 17, 1969
Cover date: August, 1969
X-Men #60
"In the Shadow of...Sauron!"
Release date: July 15, 1969
Cover date: September, 1969
"In the Shadow of...Sauron!"
Release date: July 15, 1969
Cover date: September, 1969
X-Men #61
"Monsters Also Weep"
Release date: August 12, 1969
Cover date: October, 1969
"Monsters Also Weep"
Release date: August 12, 1969
Cover date: October, 1969
X-Men #62
"Strangers ...in a Savage Land"
Release date: September 16, 1969
Cover date: November, 1969
"Strangers ...in a Savage Land"
Release date: September 16, 1969
Cover date: November, 1969
X-Men #63
"War in the World Below!"
Release date: October 14, 1969
Cover date: December, 1969
"War in the World Below!"
Release date: October 14, 1969
Cover date: December, 1969
Nos. 64–131 (1970s)
X-Men #64
"The Coming of Sunfire!"
Release date: November 19, 1969
Cover date: January, 1970
"The Coming of Sunfire!"
Release date: November 19, 1969
Cover date: January, 1970
X-Men #65
"Before I'd Be Slave..."
Release date: December 16, 1969
Cover date: February, 1970
"Before I'd Be Slave..."
Release date: December 16, 1969
Cover date: February, 1970
X-Men #66
"The Mutants and the Monster"
Release date: January 12, 1970
Cover date: March, 1970
"The Mutants and the Monster"
Release date: January 12, 1970
Cover date: March, 1970
X-Men #67
Release date: September 22, 1970
Cover date: December, 1970
Release date: September 22, 1970
Cover date: December, 1970
X-Men #68
Release date: November 24, 1970
Cover date: February, 1971
Release date: November 24, 1970
Cover date: February, 1971
X-Men #69
Release date: January 26, 1971
Cover date: April, 1971
Release date: January 26, 1971
Cover date: April, 1971
X-Men #70
Release date: March 23, 1971
Cover date: June, 1971
Release date: March 23, 1971
Cover date: June, 1971
X-Men #71
Release date: May 25, 1971
Cover date: August, 1971
Release date: May 25, 1971
Cover date: August, 1971
X-Men #72
Release date: July 20, 1971
Cover date: October, 1971
Release date: July 20, 1971
Cover date: October, 1971
X-Men #73
Release date: September 14, 1971
Cover date: December, 1971
Release date: September 14, 1971
Cover date: December, 1971
X-Men #74
Release date: November 16, 1971
Cover date: February, 1972
Release date: November 16, 1971
Cover date: February, 1972
X-Men #75
Release date: January 18, 1972
Cover date: April, 1972
Release date: January 18, 1972
Cover date: April, 1972
X-Men #76
Release date: March 21, 1972
Cover date: June, 1972
Release date: March 21, 1972
Cover date: June, 1972
X-Men #77
Release date: May 23, 1972
Cover date: August, 1972
Release date: May 23, 1972
Cover date: August, 1972
X-Men #78
"The Menace of Merlin!"
Release date: July 18, 1972
Cover date: October, 1972
"The Menace of Merlin!"
Release date: July 18, 1972
Cover date: October, 1972
X-Men #79
Release date: September 12, 1972
Cover date: December, 1972
Release date: September 12, 1972
Cover date: December, 1972
X-Men #80
Release date: November 7, 1972
Cover date: February, 1973
Release date: November 7, 1972
Cover date: February, 1973
X-Men #81
Release date: January 9, 1973
Cover date: April, 1973
Release date: January 9, 1973
Cover date: April, 1973
X-Men #82
Release date: March 13, 1973
Cover date: June, 1973
Release date: March 13, 1973
Cover date: June, 1973
X-Men #83
Release date: May 15, 1973
Cover date: August, 1973
Release date: May 15, 1973
Cover date: August, 1973
X-Men #84
Release date: July 10, 1973
Cover date: October, 1973
Release date: July 10, 1973
Cover date: October, 1973
X-Men #85
Release date: September 4, 1973
Cover date: December, 1973
Release date: September 4, 1973
Cover date: December, 1973
X-Men #86
Release date: October 30, 1973
Cover date: February, 1974
Release date: October 30, 1973
Cover date: February, 1974
X-Men #87
Release date: January 1, 1974
Cover date: April, 1974
Release date: January 1, 1974
Cover date: April, 1974
X-Men #88
Release date: March 12, 1974
Cover date: June, 1974
Release date: March 12, 1974
Cover date: June, 1974
X-Men #89
Release date: May 14, 1974
Cover date: August, 1974
Release date: May 14, 1974
Cover date: August, 1974
X-Men #90
Release date: July 9, 1974
Cover date: October, 1974
Release date: July 9, 1974
Cover date: October, 1974
X-Men #91
Release date: September 10, 1974
Cover date: December, 1974
Release date: September 10, 1974
Cover date: December, 1974
X-Men #92
Release date: November 12, 1974
Cover date: February, 1975
Release date: November 12, 1974
Cover date: February, 1975
X-Men #93
Release date: January 14, 1975
Cover date: April, 1975
Release date: January 14, 1975
Cover date: April, 1975
X-Men #94
"The Doomsmith Scenario!"
Release date: June 10, 1975
Cover date: August, 1975
"The Doomsmith Scenario!"
Release date: June 10, 1975
Cover date: August, 1975
X-Men #95
"Warhunt!"
Release date: July 22, 1975
Cover date: October, 1975
"Warhunt!"
Release date: July 22, 1975
Cover date: October, 1975
X-Men #96
"Night of the Demon!"
Release date: September 23, 1975
Cover date: December, 1975
"Night of the Demon!"
Release date: September 23, 1975
Cover date: December, 1975
X-Men #97
"My Brother, My Enemy!"
Release date: November 25, 1975
Cover date: February, 1976
"My Brother, My Enemy!"
Release date: November 25, 1975
Cover date: February, 1976
X-Men #98
"Merry Christmas, X-Men — The Sentinels Have Returned!"
Release date: January 20, 1976
Cover date: April, 1976
"Merry Christmas, X-Men — The Sentinels Have Returned!"
Release date: January 20, 1976
Cover date: April, 1976
X-Men #99
"Deathstar, Rising!"
Release date: March 16, 1976
Cover date: June, 1976
"Deathstar, Rising!"
Release date: March 16, 1976
Cover date: June, 1976
X-Men #100
"Greater Love Hath No X-Man..."
Release date: May 18, 1976
Cover date: August, 1976
"Greater Love Hath No X-Man..."
Release date: May 18, 1976
Cover date: August, 1976
X-Men #101
"Like a Phoenix, from the Ashes"
Release date: July 20, 1976
Cover date: October, 1976
"Like a Phoenix, from the Ashes"
Release date: July 20, 1976
Cover date: October, 1976
X-Men #102
"Who Will Stop the Juggernaut?"
Release date: September 21, 1976
Cover date: December, 1976
"Who Will Stop the Juggernaut?"
Release date: September 21, 1976
Cover date: December, 1976
X-Men #103
"The Fall of the Tower"
Release date: November 16, 1976
Cover date: February, 1977
"The Fall of the Tower"
Release date: November 16, 1976
Cover date: February, 1977
X-Men #104
"The Gentleman's Name is Magneto"
Release date: January 18, 1977
Cover date: April, 1977
"The Gentleman's Name is Magneto"
Release date: January 18, 1977
Cover date: April, 1977
X-Men #105
"Phoenix Unleashed!"
Release date: March 15, 1977
Cover date: June, 1977
"Phoenix Unleashed!"
Release date: March 15, 1977
Cover date: June, 1977
X-Men #106
"Dark Shroud of the Past!"
Release date: May 17, 1977
Cover date: August, 1977
"Dark Shroud of the Past!"
Release date: May 17, 1977
Cover date: August, 1977
X-Men #107
"Where No X-Man Has Gone Before!"
Release date: July 19, 1977
Cover date: October, 1977
"Where No X-Man Has Gone Before!"
Release date: July 19, 1977
Cover date: October, 1977
X-Men #108
"Armageddon Now"
Release date: September 20, 1977
Cover date: December, 1977
"Armageddon Now"
Release date: September 20, 1977
Cover date: December, 1977
X-Men #109
"Home are the Heroes!"
Release date: November 15, 1977
Cover date: February, 1978
"Home are the Heroes!"
Release date: November 15, 1977
Cover date: February, 1978
X-Men #110
"The 'X'-Sanction"
Release date: January 17, 1978
Cover date: April, 1978
"The 'X'-Sanction"
Release date: January 17, 1978
Cover date: April, 1978
X-Men #111
"Mindgames!"
Release date: March 21, 1978
Cover date: June, 1978
"Mindgames!"
Release date: March 21, 1978
Cover date: June, 1978
X-Men #112
"Magneto Triumphant!"
Release date: May 16, 1978
Cover date: August, 1978
"Magneto Triumphant!"
Release date: May 16, 1978
Cover date: August, 1978
X-Men #113
"Showdown!"
Release date: June 20, 1978
Cover date: September, 1978
"Showdown!"
Release date: June 20, 1978
Cover date: September, 1978
X-Men #114
"Desolation"
Release date: July 18, 1978
Cover date: October, 1978
"Desolation"
Release date: July 18, 1978
Cover date: October, 1978
X-Men #115
"Visions of Death!"
Release date: August 15, 1978
Cover date: November, 1978
"Visions of Death!"
Release date: August 15, 1978
Cover date: November, 1978
X-Men #116
"To Save the Savage Land"
Release date: September 19, 1978
Cover date: December, 1978
"To Save the Savage Land"
Release date: September 19, 1978
Cover date: December, 1978
X-Men #117
"Psi War!"
Release date: October 17, 1978
Cover date: January, 1979
"Psi War!"
Release date: October 17, 1978
Cover date: January, 1979
X-Men #118
"The Submergence of Japan"
Release date: November 14, 1978
Cover date: February, 1979
"The Submergence of Japan"
Release date: November 14, 1978
Cover date: February, 1979
X-Men #119
"'Twas the Night Before Christmas..."
Release date: December 12, 1978
Cover date: March, 1979
"'Twas the Night Before Christmas..."
Release date: December 12, 1978
Cover date: March, 1979
X-Men #120
"Wanted: Wolverine! Dead or Alive!"
Release date: January 16, 1979
Cover date: April, 1979
"Wanted: Wolverine! Dead or Alive!"
Release date: January 16, 1979
Cover date: April, 1979
X-Men #121
"Shoot-Out at the Stampede!"
Release date: February 13, 1979
Cover date: May, 1979
"Shoot-Out at the Stampede!"
Release date: February 13, 1979
Cover date: May, 1979
X-Men #122
"Cry for the Children!"
Release date: March 20, 1979
Cover date: June, 1979
"Cry for the Children!"
Release date: March 20, 1979
Cover date: June, 1979
X-Men #123
"Listen -- Stop Me if You've Heard It -- But This One Will Kill You!"
Release date: April 17, 1979
Cover date: July, 1979
"Listen -- Stop Me if You've Heard It -- But This One Will Kill You!"
Release date: April 17, 1979
Cover date: July, 1979
X-Men #124
"He Only Laughs When I Hurt!"
Release date: May 15, 1979
Cover date: August, 1979
"He Only Laughs When I Hurt!"
Release date: May 15, 1979
Cover date: August, 1979
X-Men #125
"There's Something Awful on Muir Island!"
Release date: June 19, 1979
Cover date: September, 1979
"There's Something Awful on Muir Island!"
Release date: June 19, 1979
Cover date: September, 1979
X-Men #126
"How Sharper Than a Serpent's Tooth...!"
Release date: July 17, 1979
Cover date: October, 1979
"How Sharper Than a Serpent's Tooth...!"
Release date: July 17, 1979
Cover date: October, 1979
X-Men #127
"The Quality of Hatred!"
Release date: August 21, 1979
Cover date: November, 1979
"The Quality of Hatred!"
Release date: August 21, 1979
Cover date: November, 1979
X-Men #128
"The Action of the Tiger!"
Release date: September 18, 1979
Cover date: December, 1979
"The Action of the Tiger!"
Release date: September 18, 1979
Cover date: December, 1979
X-Men #129
"God Spare the Child..."
Release date: October 16, 1979
Cover date: January, 1980
"God Spare the Child..."
Release date: October 16, 1979
Cover date: January, 1980
X-Men #130
"Dazzler"
Release date: November 20, 1979
Cover date: February, 1980
"Dazzler"
Release date: November 20, 1979
Cover date: February, 1980
X-Men #131
"Run for Your Life!"
Release date: December 18, 1979
Cover date: March, 1980
"Run for Your Life!"
Release date: December 18, 1979
Cover date: March, 1980
Nos. 132–141 (1980s)
X-Men #132
"And Hellfire is Their Name!"
Release date: January 15, 1980
Cover date: April, 1980
"And Hellfire is Their Name!"
Release date: January 15, 1980
Cover date: April, 1980
X-Men #133
"Wolverine: Alone!"
Release date: February 19, 1980
Cover date: May, 1980
"Wolverine: Alone!"
Release date: February 19, 1980
Cover date: May, 1980
X-Men #134
"Too Late, the Heroes!"
Release date: March 18, 1980
Cover date: June, 1980
"Too Late, the Heroes!"
Release date: March 18, 1980
Cover date: June, 1980
X-Men #135
"Dark Phoenix"
Release date: April 15, 1980
Cover date: July, 1980
"Dark Phoenix"
Release date: April 15, 1980
Cover date: July, 1980
X-Men #136
"Child of Light and Darkness!"
Release date: May 20, 1980
Cover date: August, 1980
"Child of Light and Darkness!"
Release date: May 20, 1980
Cover date: August, 1980
X-Men #137
"The Fate of the Phoenix!"
Release date: June 17, 1980
Cover date: September, 1980
"The Fate of the Phoenix!"
Release date: June 17, 1980
Cover date: September, 1980
X-Men #138
"Elegy"
Release date: July 15, 1980
Cover date: October, 1980
"Elegy"
Release date: July 15, 1980
Cover date: October, 1980
X-Men #139
"...Something Wicked This Way Comes!"
Release date: August 19, 1980
Cover date: November, 1980
"...Something Wicked This Way Comes!"
Release date: August 19, 1980
Cover date: November, 1980
X-Men #140
"Rage!"
Release date: September 16, 1980
Cover date: December, 1980
"Rage!"
Release date: September 16, 1980
Cover date: December, 1980
X-Men #141
"Days of Future Past"
Release date: October 21, 1980
Cover date: January, 1981
"Days of Future Past"
Release date: October 21, 1980
Cover date: January, 1981
Renamed as Uncanny X-Men