While the circumstances are unknown, on this world, mutants were feared and hated. This came to a head when an alliance of the world's most powerful mutants took over the world and put mutants in charge, persecuting humans with robotic Sentinels. However, after an unspecified amount of time, the X-Men fought back, defeating the super-mutants, and ushering in an alleged age of tolerance.
The Earth planet of this reality was eventually destroyed, and their inhabitants relocated on the Earth of another reality.
- Prior to being given an official reality number, this universe was referred as Earth-TRN192 as a part of our Temporary Reality Numbers classification system.
- 6 appearance(s) of Earth-12245
- 32 image(s) of Earth-12245
- 25 characters that originate from Earth-12245
- 2 teams that originate from Earth-12245