Documents U.S. History. Scientist say humans first emerged 15,000 - 30,000 years ago Use radiocarbon dating ...

Slide 1U.S. History Slide 2  Scientist say humans first emerged 15,000 - 30,000 years ago  Use radiocarbon dating  15,000 years ago humans crossed a landmass called…

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Documents Unit 1

Unit 1 Unit 1 U.S. History The Dawn of Man Scientist say humans first emerged 15,000 -30,000 years ago Use radiocarbon dating 15,000 years ago humans crossed a landmass called…