Menmosyne was a daughter of Uranus and Gaea. She was the titaness who was helping the humans remember the myths of the gods.

Zeus, the king of the gods, lied with Mnemosyne for nine consecutive nights in order to create deities who would praise the Olympian Gods' victory over their battle with the titans (Titanomachy). Nine months later, Mnemosyne bore Zeus nine daughters. The doughters were named Muses and they became the goddesses of the Arts and the Sciences in Ancient Greece.