User blog comment:LancelotLoire/Assassin Creed 4 Idea/@comment-4142930-20121125132028/@comment-4661864-20121125143129

Well we know the ending period for the first civ and the rise of human civilization, and that'd be 75000BC. Also at that time period the war between humans and first civ's came to an end. It is however stated that the first civ sped up the evolution of humans and that they themselves had evolved on the planet. So in a modern context, imagine that scientists genetically enhance a rhesus macaque to appear human.

The First Civilization is kinda self representing in the name. They were the dominantly evolved species on the planet at the time. Ah According to? Adam's page "In 75010 BCE, Adam and a hybrid woman named? Eve? rebelled against their creators". When they were 'created' and from what has not been mentioned however.

EDIT: WTF the wikia bug is effecting mah post. Pay no attention to any question mark in this. I didn't type them.