CLASSIC: Is there really a lost civilization in the Grand Canyon?
Stuff They Don't Want You To Know
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The History of the Grand Canyon
archaeological sites show that the ancestral pueblo and the Kohonina flourished only until about 1200 CE. That's because something likely happened 100 years later that forced both of these cultures to skedaddle. The first European known to have even viewed set eyes on the Grand Canyon was Garcia Lopez de Cardenas in 1540.
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