Uncanny X-Men is an ongoing title starring the X-Men. It was created in September, 1963 by Stan Lee and Jack Kirby and after a brief hiatus, relaunched in 1975 by Chris Claremont and Dave Cockrum. It is often regarded as the flagship book of the X-Men line. It is also seen by many as the only Silver Age Marvel comic that will have retained its original numbering through issue #500.