The greatest vanishing act in prehistoric America
Seven centuries ago, tens of thousands of people fled their homes in the American Southwest. Archaeologists are trying to work out why. By Richard Monastersky.
Continue Reading http://www.nature.comSeven centuries ago, tens of thousands of people fled their homes in the American Southwest. Archaeologists are trying to work out why. By Richard Monastersky.
Continue Reading http://www.nature.com
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