what is the accounts of mythographer Apollodorus about the genealogy of Uranos?

Apollodorus, a Greek mythographer, provides an account of the genealogy of Uranus (also known as Ouranos) in his work, "The Library". According to Apollodorus, Uranus is the son of Gaia, the Earth, who conceived him without any male intervention. Uranus is the personification of the sky and heavens, and he is the first ruler of the universe.

Uranus and Gaia became the parents of the first generation of Titans, which included twelve children: six sons (Oceanus, Coeus, Crius, Hyperion, Iapetus, and Cronus) and six daughters (Theia, Rhea, Themis, Mnemosyne, Phoebe, and Tethys).

Uranus was a cruel father and husband. He hated his children and imprisoned them in the depths of the earth, which caused great pain to Gaia. Gaia then plotted with her son Cronus to overthrow Uranus. Cronus castrated his father Uranus, and from the blood that fell on earth, the Erinyes (Furies), Giants, and Meliae (Nymphs) were born.

After this, Cronus became the ruler of the universe. However, he was later overthrown by his own son Zeus, who became the king of the gods. This story is part of the Greek mythological theme of the succession of divine kings, where the son overthrows the father.