X-Men: Evolution is an American animated television series based on the superhero series X-Men published by Marvel Comics. Taking inspiration from the early issues of the original comics, the series portrays the X-Men as teenagers rather than adults, following their struggle to control their mutant powers as they face various threats. X-Men: Evolution ran for a total of four seasons, comprising 52 episodes in total, from November 4, 2000, to October 25, 2003, on Kids' WB, making it the third longest-running Marvel Comics animated series at the time, behind Fox Kids' X-Men and Spider-Man. The series later aired on Disney XD from June 15, 2009, to December 30, 2011.

X-Mansion and Xavier Institute are the common names for a mansion and research institute appearing in American comic books published by Marvel Comics. The mansion is depicted as the private estate of Charles Francis Xavier, a character in X-Men comics. It serves as the base of operations and training site of the X-Men. It is also the location of an accredited private school for mutant children, teenagers, and sometimes older aged mutants, the Xavier Institute for Higher Learning, formerly the Xavier School for Gifted Youngsters. The X-Mansion is also the worldwide headquarters of the X-Corporation.