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twelve40
on Dec 27, 2017
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Symbols Found in Ice Age Caves Across Europe (2015...
I found this link to be pretty interesting read on the topic. Kind of takes the mystery out of it though : )
http://www.lowtechmagazine.com/2010/03/history-of-human-powe...
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http://www.lowtechmagazine.com/2010/03/history-of-human-powe...