Uranus (mythology) castrated Uranus, from Uranus' blood, which splattered onto the earth, came the Erinyes (Furies), the Giants, and the Meliae. Also, according to the "Theogony", Cronus threw the severed genitals into the sea, around which "a white foam spread" and "grew" into the goddess Aphrodite, although according to Homer, Aphrodite was the daughter of Zeus and Dione. In the Olympian creation myth, as Hesiod tells it in the "Theogony", Uranus came every night to cover the earth and mate with Gaia, but he hated the children she bore him. Hesiod named their first six sons and six daughters the Titans, the
Moons of Uranus had been seen. In the 1840s, better instruments and a more favorable position of Uranus in the sky led to sporadic indications of satellites additional to Titania and Oberon. Eventually, the next two moons, Ariel and Umbriel, were discovered by William Lassell in 1851. The Roman numbering scheme of Uranus's moons was in a state of flux for a considerable time, and publications hesitated between Herschel's designations (where Titania and Oberon are Uranus II and IV) and William Lassell's (where they are sometimes I and II). With the confirmation of Ariel and Umbriel, Lassell numbered the moons I through IV