Heracles (or Hercules) is best known as the strongest of all mortals, and even stronger than many gods. He was the deciding factor in the triumphant victory of the Olympians over the giants. He was the last mortal son of Zeus, and the only man born of a mortal woman to become a god upon his death.
In Greek mythology the Titan Atlas was responsible for bearing the weight of the heavens on his shoulders, a burden given to him as punishment by Zeus. With a name perhaps conveying the meaning ‘very enduring’, Atlas was the son of the Titans Iapetus and Clymene (or Themis) and the brother of Epimetheus, Menoetius and Prometheus. Atlas was the father of the nymph Calypso and another daughter was Maia, who was one of the Pleiades and mother of the messenger god Hermes.