Creator
George perez, Marv wolfman
Bob Mcleod, Chris Claremont
In Comics
Crisis on Infinite Earths #4 (July, 1985)
Marvel Graphic Novel #4 - The New Mutants: Renewal
Base
Qward, Antimatter Universe
(current) X-Factor Investigations, New York City (former)Professor Xaviers School of Gifted Youngsters, Salem Center, Westchester County, New York; Muir Island, Scotland; X-Factor headquarters, Embassy Row, Washington, D.C.; X-Factor Headquarters, New Yo