Microscopic observation of original etchings and engravings produced experimentally to demonstrate that the sequences of lines in Azilian pebbles (10 000-8 000 BC. J.C.) were made very quickly and by the same tool. This refutes the ...See moreMicroscopic observation of original etchings and engravings produced experimentally to demonstrate that the sequences of lines in Azilian pebbles (10 000-8 000 BC. J.C.) were made very quickly and by the same tool. This refutes the hypothesis that they are among other calendars. These objects seem rather have symbolic meaning inherited from the cultural world of the Upper Paleolithic. Written by
Hervé Lièvre
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