Superman started as a bald telepathic villain in the short story "The Reign Of Super-man" published in 1933. Less than six years later in 1938, Jerry Siegel and Joe Shuster sold their rights on Superman to Detective Comics(DC Comics) for $130.
In 1962 an laughing epidemic broke out in Tanganyika (now Tanzania). Starting among a group of schoolgirls, the laughter spread rapidly, eventually infecting neighbouring villages and forcing schools to close. It lasted for at least six months.