There were 12 original Titans, the males being known as the Titans (Coeus, Kreios, , , Iapetus, and ) and the females as the Titanides (Mnemosyne, Phoebe, , Tethys, Theia/, Themis). They were ruled by the oldest Titan, Kronos, who overthrew with the aid of Gaia (who crafted his sickle) and his brothers (not Oceanus) and , Titan God of Wind Storm and son of Pontus and Gaia.
Later, several of the Titans also produced offspring which were also Titans. These Titans included the children of Hyperion (Selene), ( Eos), (Helios), the children of Coeus (Koios, Leto and Asteria), the children of Iapetus (, Menoetius, , and ) and the children of Kreios (Astraios, , Crius, Pallas and ).
The Titans preceded the who, led by , eventually overthrew them in the . The Titans were then imprisoned in , the deepest and darkest of the . Only a few Titans (such as Prometheus,Oceanus and Helios) were spared that fate. Atlas, who led the Titans in the Titanomachy, was forced to hold the sky (Ouranos) upon his shoulders, fore the sky was greatly damaged in the war and couldn't support itself and also because of the death of the sky (Ouranus).
In the beginning, there was darkness. The Titans were born on the , home to the and controllers of time. Themis was born of Gaia, who became the embodiment of divine order, law, and custom, giving the Titans a purpose to be a part of the world.