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24 October, 19:53

What did von Petzinger find in her studies on geometric signs?

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  1. 24 October, 23:51
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    von Petzinger reports that Ice Age Europeans used just 32 distinct types of geometric symbols over a period of 30,000 years, suggesting that the markings were "meant to transmit information"-an early step on humanity's long road to developing writing.
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