Greeks accepted Hesiod's Theogony (c. 700 BCE) as the stand
ard mythical account of the world's earliest history.
It explains how the world and deities came into existence, and how Zeus and the Olympian gods gained supreme authority.
Chaos: The first entity, a 'gaping void,' representing a murky reality and the source of darkness.
Gaea (Earth): A primal entity that came into existence independently of Chaos. Significant genealogically.
Tartarus: The nethermost region of the universe, a remote prison for banished deities, separate from Hades initially.
Eros: Personification of love/desire, drives procreation.
Chaos produced Erebus (darkness) and Nyx (Night). Nyx's descendants are personifications of negative forces.
Gaea independently generated Uranus (Sky), the Mountains, and Pontus (Sea).
Gaea and Uranus founded the main divine family, while Gaea and Pontus founded a family of sea-gods and monsters.
Gaea and Uranus are the primordial couple.
Uranus mistreated his children, causing Gaea anguish.
Gaea bore the Titans, Cyclopes, and Hecatoncheires to Uranus. Uranus hated them and prevented them from emerging into the light.
Cronus, the youngest Titan, castrated Uranus with a sickle prepared by Gaea.
From Uranus' severed genitals thrown into the sea, Aphrodite was generated.
Blood from the genitals dripped on Gaea, creating the Erinyes, Giants, and Meliae.
This separation of Earth and Sky is a common cosmological theme.
Cronus overthrew Uranus, becoming the new lord of the universe.
Cronus swallowed his children to avoid being overthrown, but Rhea hid Zeus.
Zeus overthrew Cronus, banishing him and the Titans to Tartarus.
This forms a 'succession myth' showing the establishment of the divine order under Zeus.