X-Men, Volume 1 is an American comic book series published by Marvel Comics. It was published from September, 1963 to January, 1981, after which, the title was changed to Uncanny X-Men. Sometimes referred to as The X-Men, the series ran for a total of 141 issues before the title changeover.
During the mid-1970s the title was on the verge of cancellation until writer Len Wein and artist Dave Cockrum gave the book just the shot in the arm it needed to become the world-famous multimedia franchise it is today. In a one-shot special entitled Giant-Size X-Men #1, the creative staff introduced the "All-New, All-Different X-Men", which consisted of original team field leader, Cyclops, as well as several brand-new members including Storm, Nightcrawler, Colossus, Thunderbird and Wolverine.