The X-Men are a superhero team appearing in American comic books published by Marvel Comics. Created by artist/co-plotter Jack Kirby and writer/editor Stan Lee, the team first appearing in The X-Men #1 (September 1963). Although initially cancelled in 1970 due to low sales, following its 1975 revival and subsequent direction under writer Chris Claremont, it became one of the most recognizable and successful franchises of Marvel Comics. They have appeared in numerous books, television shows, the 20th Century Fox X-Men films, and video games. The X-Men title may refer to the superhero team itself, the eponymous comic series, or the broader franchise including various solo titles and team books such as the New Mutants, Excalibur, and X-Force.

https://en.wikipedia.org/wiki/X-Men