"Apollodorus, 1.1.3, 1.3.1. Dione is also the mother of Aphrodite by Zeus in the Iliad, 5.370, 3.374; but in the Theogony, 191–200, Aphrodite was born from the foam which formed around Uranus' severed genitals when Cronus threw them into the sea."
January 1, 1970