Amazing Adventures #1 (June, 1961)
The X-Men #49 - Who Dares Defy The Demi-Men?
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Serval Industries, Virginia; früher X-Factor Untersuchungen Hauptquartier, Starjammer; Xavier Institute for Higher Learning, Salem-Center, Westchester County, New York; Genosha; X-Factor HQ, Washington DC, Maryland; Mutant Research Center, Muir Insel;