Oranos was the Sky and the son of
Gaea, the Earth. He did not have a father, but had two brothers,
Pontus and Ourea. He became Gaea's mate and thus the ruler
of the universe.
Oranos and Gaea had many children. They were the Titans,
the Cyclopes, and the Hecatoncheires. Oranos was very proud
of the Titans, but disgusted with the Cyclopes and the Hecatoncheires
so he threw them into Tartarus which was the lowest place
below the Earth.
Gaea hated that Oranos had imprisoned her children and
decided to get rid of him. She made a sickle and gave it
to the Titans to use against Oranos. The only Titan brave
enough to use it was Kronos, the youngest.
Kronos snuck up on Oranos while he was with Gaea and castrated
him. Where Oranos's blood fell, the Erinyes, Giants, and
Ash Tree Nymphs sprang up. Oranos's testicles fell into
the ocean and foams grouped around them. The foams became
Aphrodite, the goddess of love. Oranos couldn't beat his
son and fled, relinquishing his power over the universe.