According to Greek mythology, the youngest male Titan, Cronus, overthrew his father Uranus. Gaia opposed her husband, after he forced her to keep her children within her. With Gaia in a lot of pain, she retaliated by giving Cronus a sickle to remove the genitals of his father, Uranus. This resulted in the Titans becoming the new rulers of the heavens. However, Cronus was told that his children would overthrow him as well, so he ate them in order to prevent the overthrow from happening. Rhea, Cronus' sister-wife, did not like the idea of Cronus eating their children, so she saved Zeus, by feeding Cronus a rock instead of Zeus. Eventually Zeus grew older, and released his siblings. In turn, the Titans were overthrown by Cronus' children (Zeus, Hades, Poseidon, Hestia, Hera and Demeter), in an event known as the Titanomachy ("War of the Titans"). This was a ten-year war that raged between the Olympians (Zeus, Hades, Poseidon, Hestia, Hera, and Demeter) and the Titans, which resulted in the Olympians winning. The Titans were imprisoned in Tartarus after the war ended. Tartarus is said to be the deepest part of the Underworld and the place where the most evil beings are tortured for all eternity. The Greeks may have borrowed this mytheme from the Ancient Near East.