Researchers see violent era in ancient Southwest

4 agosto 2014

In numbers terms, the 20th Century was the most violent in history, with civil war, purges and two World Wars killing as many as 200 million people. But on a per-capita basis, scientists have documented a particularly bloody period more than eight centuries ago. Between 1140 and 1180, in the central Mesa Verde of southwest Colorado, four relatively peaceful centuries of pueblo living devolved into several decades of violence.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IGCycHvOeB0/140804100356.htm

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