In Greek mythology, Atlas was a Titan condemned to hold up the sky for eternity after the Titanomachy. Although associated with various places, he became commonly identified with the Atlas Mountains in northwest Africa (modern-day Morocco, Algeria and Tunisia). Atlas was the son of the Titan Iapetus and the Oceanid Asia or Clymene. He had many children, mostly daughters, the Hesperides, the Hyades, the Pleiades, and the nymph Calypso who lived on the island Ogygia. According to the ancient Greek poet Hesiod, Atlas stood at the ends of the earth towards the west. According to Robert Graves's The Greek Myths, the Pelasgians believed the creator goddess Eurynome assigned Atlas and Phoebe to govern the moon. Hyginus emphasises the primordial nature of Atlas by making him the son of Aether and Gaia. "Atlantic Ocean" means "Sea of Atlas", while "Atlantis" means "island of Atlas".