Batman was one of the few superhero characters to be continuously published as interest in the genre waned during the 1950s. Spiderman Costume  In the story "The Mightiest Team in the World" in Superman #76 (June 1952), Batman teams up with Superman for the first time and the pair discover each other's secret identity.In 1960, Batman debuted as a member of the Justice League of America in The Brave and the Bold #28 (Feb. 1960),  CCosplay  and went on to appear in several Justice League comic book series starting later that same year.