Creator
Bob Mcleod, Chris Claremont
George Papp, Robert Bernstein
In Comics
Marvel Graphic Novel #4 - The New Mutants: Renewal
"Adventure Comics #283 (April, 1961)"
Base
(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
Formerly Krypton; formerly the Phantom Zone; currently Earth