Greek Primordial Deities. In Greek mythology, the primordial deities, are the first gods and goddesses born from the void of Chaos. Hesiod's first are Gaia, Tartarus, Eros, Erebus, Hemera and Nyx. The primordial deities Gaia and Uranus give birth to the Titans, and the Cyclopses. The Titans Cronus and Rhea give birth to Zeus, Poseidon, Hades, Hestia, Hera and Demeter who overthrew the Titans. The warring of the gods ends with the reign of Zeus. Hesiod's Theogony tells the story of the genesis of the gods. After invoking the Muses, he tells of the generation of the first four primordial deities: First Chaos came to be, but next. Earth. and dim Tartarus in the depth of the. Earth, and Eros. According to Hesiod, the next primordial gods that come to be are: Darkness and Night;. Light and Day;. Heaven and Ocean. Chaos. Gaia. Uranus. Ourea. Pontus. Tartarus. Erebus. Nyx. Aether. Hemera. Eros. Achlys. Physis. Ananke. Chronos. Aion. Himeros. Phanes. Nesoi. Thalassa. Ophion. Moirai. Moros. In some variations of Hesiod's creation myth, in Greek mythology, Chaos is the first being to ever exist. Chaos is both seen as a deity and a thing, with some sources seeing chaos as the gap between Heaven and Earth. In some accounts Chaos existed first alongside Eros and Nyx, while in others Chaos is the first and only thing in the universe. In some stories, Chaos is seen as existing beneath Tartarus. Chaos is the parent to Night and Darkness, although Chaos is never given a distinct gender. Gaia was one of the first beings to be formed from Chaos in Hesiod's theogony, and parthenogenetically gave birth to Heaven, who would later become her husband and her equal, the Sea, and to the high Mountains Gaia is a mother earth figure and is seen as the mother of all the gods, while also being the seat on which they exist. Gaia is the Greek Equivalent to the Roman goddess, Terra. The story of Uranus' castration at the hands of Cronus due to Gaia's involvement is seen as the explanation for why Heaven and Earth are separated. In Hesiod's story, Earth seeks revenge against Heaven for hiding her children the Cyclopes deep within her, Gaia then goes to her other children and asks for their help to get revenge against their cruel father; of her children, only Cronus, the youngest andmost dreadful of them all agrees to do this. Gaia plans an ambush against Uranus where she hides Cronus and gives him the sickle to castrate him. From the blood Gaia again become pregnant with the Furies, the Giants, and the Melian nymphs. Cronus goes on to have six children with his sister, Rhea; who become the Olympians. Cronus is later overthrown by his son, Zeus, much in the same way he overthrew his father. Gaia is the mother to the twelve Titans; Okeanus, Kois, Kreios, Hyperion, Iapetos, Theia, Rhea, Themis, Mnemosyne, Phoibe, Tethys, and Kronus. Later in the myth, after his succession, Cronus learns from his mother and father that his own son will overthrow him, as he did Uranus. To prevent this, Cronus swallowed all of his children with his sister Rhea as soon as they were born. Rhea sought out Gaia for help in hiding her youngest son, Zeus, and gave Cronus a rock instead to swallow. Zeus later went on to defeat his father and become the leader of the Olympians. After Zeus's succession to the throne, Gaia bore another son with Tartarus, Typhon, a monster who would be the last to challenge Zeus's authority. Heaven and Earth have three sets of children The Titans. The Cyclopes. Cottus, Briareos, Gyes. Nyx is the mother of the Moirai and many other offspring. In some variations of Hesiod's Theogony, Nyx is told as having black wings; and in one tale she laid an egg in Erebus from which Love sprang out. With Erebus she has Aether and Hemera, both embodying the antithesis of their parents. However, the children Nyx has through parthenogenesis reflect the dark aspects of the goddess. One version of Hesiod's tale tells that Night shares her house with Day in Tartarus, but that the two are never home at the same time. However, in some versions Nyx's home is where Chaos and Tartarus meet, suggesting to the idea that Chaos resides beneath Tartarus. The three fates are: Clotho. Lachesis. Atropos. Other offspring of Nyx through parthenogenesis include: Hypnos. Mockery and Woe. The Hesperides. Thanatos. Nemesis. Eris.