Premiering in June of 1938, Superman was the first super-powered hero. This also means that good olâ€™ Clark/Kal-El turns 70 years old this year! Just to give you and idea of how much this character has evolved, originally Superman couldnâ€™t fly. He could only jump long distances (hence â€œleaping tall buildings in a single boundâ€).
Hereâ€™s the cover of Supermanâ€™s first appearance: