Superman
Due to the Superman character's popularity after his premiere in Action Comics #1, National Allied Publications decided to launch an entirely new magazine featuring a single character, which at that time was unprecedented.[1] Superman #1 appeared on the shelves in the summer of 1939. Superman now also had the distinction of being the first ever hero-character featured in more than one comic magazine. By issue #7, Superman was being hailed on the covers as the "World's Greatest Adventure Strip Character". Perry White, a supporting character who had originated on the Superman radio program was introduced into the comic book in issue #7 (October 1940).[2] Editor Mort Weisinger began his long association with the title with issue #11 (July–August 1941).[3] Jimmy Olsen first appeared as a named character in the story "Superman versus The Archer" in Superman #13 (Nov.–Dec. 1941).[4][5] In the early 1940s, Superman was selling over a million copies per month.[6]
