Once upon a time, in the beginning, first came Khaos, followed by Gaia, Tartaros, and Eros. From Khaos came forth Erebos and Nyx. The union of love between Nyx and Erebos produced Aither and Hemera. Gaia, without any mate, produced Ouranos, Ourea, and Pontos. Then Gaia lay with Ouranos and produced Okeanos, Koios, Krios, Hyperion, Iapetos, Theia, Rhea, Themis, Mnemosyne, Phoibe, Tethys, and Kronos. Thereafter, Brontes, Steropes, and Arges were born, having a single eye on their foreheads and were known as the Kyklopes. Then came Kottos, Briareos, and Gyes, having hundred arms, fifty heads and were known as the Hekatonkheires.
Ouranos hated the monstrous Kyklopes and the Hekatonkheires. Therefore, as soon as each was born, he hid them in a secret place of Gaia. But Gaia groaned within and was tormented inexplicably. Then, Gaia shaped a great sickle of grey flint and called her other sons. She told her children begotten of a sinful father, to obey her wish of punishing the vile outrage of their father, for their father first thought of doing shameful things. All the children were afraid, but the wily Kronos took courage and agreed to do the fearful deed, as proposed by Gaia.
When Ouranos came and lay with Gaia, then Kronos from his ambush stretched his left hand, while his right hand held the great long sickle with jagged teeth. Kronos swiftly lopped off the members of Ouranos and cast them away in the surging sea. Blood gushed forth from the castrated Ouranos and it fell on Gaia, who from the blood of Ouranos produced the Erinyes, the Gigantes, and the Nymphai. The cut-off immortal members of Ouranos floated in the sea, a white foam spread around them and from it was born Aphrodite.
In reproach, Ouranos called his sons as Titanes, meaning Strainers, for they strained, did presumptuously a fearful deed, and vengeance would follow.
Excerpt from the book “Once Upon A Time-II: 150 Greek Mythology Stories” by Rajen Jani