Over decades of X-Men comics, several plot threads have become iconic. The X-Men fight for those who hate and fear them, take on gigantic mutant-killing sentinels, and live in a mansion filled with young mutants. While they're rarely connected with Marvel's sci-fi line-up, the team also became known for their constant time travel adventures.
Source：https://www.cbr.com/xmen-best-time-travel-stories/
