America -- History  

News in Review - May 2011 Revising the History of the Americas

Scientists have long assumed that humans arrived in the Americas by crossing a land corridor in the north about 13,000 years ago. But now there is evidence they may have arrived long before that, and by an entirely different route. In this News in Review story we’ll look at that evidence and what it could mean for the prehistory of ...
  • 2011
  • 00:15:35
  • 13-14
  • Added on: 05/15/2011

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