Prometheus is a figure from Greek mythology. He was one of the Titans, the generation of gods before the Olympians, and has a prominent role in Greek myth as a benefactor to humanity. He appears in both poems by Hesiod, Theogony and Works and Days, and also a play by Aeschylus.
He is distinguished for his cleverness and does two things to help humans. First he steals fire and brings it to humanity.
In another story, he is responsible for tricking Zeus so that he receives skin, fat, viscera and bones from the sacrifice while humans get the valuable meat.
As punishment, Prometheus is eternally chained to a rock with an eagle gnawing his liver each day, and the liver regrowing by night.