Superman (sometimes calle Superman (volume 1) and for a time published as Adventures of Superman) began as one of several anthology features in the National Periodical Publications comic book Action Comics #1 (June 1938). The strip proved so popular that National launched Superman into his own self-titled comic book, the first for any superhero, premiering with cover-date June 1939. Between 1986 and 2006 it was retitled Adventures of Superman while a new comic book used the title Superman. As of November 7, 2007, the series has reached issue #670.