Superman, a superhero in a blue costume with a red cape and a famous "S" on his chest, first appeared in the first issue of Action Comics. This issue is considered to be the beginning of the superhero genre in the history of comics: that's why Action Comics #1 is also the most valuable comic book ever. Superman was created by writer Jerry Siegel and Joe Shuster. Later the character was bought by the DC Comics publisher, which was called Detective Comics, Inc.

For quite a long time now Superman remains one of the most adored and recognizable superheroes of all times.

More Info: en.wikipedia.org