National Lampoon was a ground-breaking American humor magazine which ran from 1970 to 1998. The magazine started out as a spinoff from the Harvard Lampoon. National Lampoon magazine reached its height of popularity and critical acclaim during the 1970s, when it had a far-reaching effect on American humor and comedy. The magazine spawned films, radio, live theatre, various kinds of recordings, and print products including books. Many members of the creative staff from the magazine subsequently went on to contribute creatively to successful media of all types.During the magazine's most successful years, parody of every kind was a mainstay; surrealist content was also central to its appeal.