Researchers at Freie Universität in Berlin have found the oldest Siberian fortress in history, 8,000 years ago. It has long been believed that the strengths have risen to the height of the Neolithic Revolution because of the stabilization of communities by agriculture.

But Siberian communities 8,000 years ago were hunter-gatherers, usually nomads. So what led them to sedentarism? The first hypothesis of the researchers is that it was a very productive space, so its inhabitants did not have to move around or develop agriculture to obtain food and other resources for the community.