Superheroes. Everybody on these forums probably has a picture that forms in their mind when they hear the word, although those pictures probably vary among us. But where did it come from?
All-Star Comics #3 - as far as I can tell, the first time that these types of characters used a label for themselves - employed the term Mystery Men. By 1958, with the introduction of the Legion of Superheroes (or the Superhero Club, as it was originally known) the term superhero was clearly established as the way of generically describing colorfully-clad adventurers with superhuman abilities and/or extraordinary skills. What happened in between?
What was the first use of the word superhero? When did the word become the description for comics characters of this type?