East Lansing, MI
Superman comic books began officially in June 1938 with the publication of Action Comics, no. 1. They were instantly popular and launched the superhero phenomenon, where people dress in unique, often flamboyant costumes and perform impossible feats of heroism. Superhero comics peaked at the end of World War II, then for some reason dwindled from hundreds of titles to just Superman, Batman, and Wonder Woman, then resurged in the 1960s.
Credit: Exhibition overview from museum website.