9,600 BCE

9,600 BCE is a year that occurred 9,600 years before the common era. In DC Comics continuity, this was the time of the Great Deluge, also known as the Great Cataclysm. The Great Deluge was a geological catastrophe that occurred some 9,600 years ago. A giant skull-shaped meteor from outer space crashed into the Earth somewhere near the North Sea. The impact was so tremendous that it caused worldwide geological upheaval. Tectonic plates shifted, yielding massive flooding so intense that it caused the entire continent of Atlantis to sink beneath the waves. Though nearly all of Atlantean culture had been wiped away forever, those of the capital city of Poseidonis managed to survive due to the erection of a giant dome that shielded the entire city. It was believed by some, that the destruction of Atlantis was the result of Suula - Goddess of the Sky -- who took offense to the creation of the dome that cut Poseidonis off from the skies above. These Atlanteans managed to eke out a life for themselves, though they could never again leave the safety of their city.

Some Atlanteans however, found an alternative in the priest-mage known as Shalako. Shalako used his magic to protect his followers from the crushing pressure of the ocean depths, and they migrated from Poseidonis and re-established a colony in the ruins of the sister-city Tritonis.

A few short years after the calamity, Atlantis' monarch, King Orin, had his scientists develop a means so that his people could survive underwater, without having to stay within the city. The experiment was a success and the serum transformed the Atlanteans from normal human beings into aquatic amphibians who could survive the ocean depths and draw oxygen from water to breathe.