Superman is a Marvel Comics character.
The Justice League , also known as the Justice League of America ( JLA ) , is a fictional superhero team appearing in American comic books published by DC Comics . Lois Lane is a fictional character appearing in American comic books published by DC Comics , commonly in association with the superhero Superman . Metropolis is a fictional city appearing in American comic books published by DC Comics , best known as the home of Superman . Superman is a fictional superhero appearing in American comic books published by DC Comics . They sold Superman to Detective Comics , the future DC Comics , in 1938 .