Mysterious marks on Ice Age cave art may have been a form of record keeping. sciencenews.org Submitted by Rifletree t3_11bkz7e 2 years ago in history 53 comments 1,527
[deleted] t1_ja0x5px wrote 2 years ago Reply to comment by maaku7 in Mysterious marks on Ice Age cave art may have been a form of record keeping. by Rifletree [removed] Permalink Parent 1
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