A key issue noted for First appearance of Cylla Markham. The Uncanny X-Men #260 was published by Marvel Comics on April 1, 1990, as part of a series that began in 1981. Chris Claremont writes, and art comes from Dan Green, Glynis Oliver and Jim Lee. This 36-page issue features Colossus, Dazzler, Banshee, Forge and Strong Guy, among 16 characters cataloged on VerseDB.