イシャンゴの骨
1. Ishango boneThe Ishango bone is a bone tool, dated to the Upper Paleolithic era. It is a dark brown length of bone, the fibula of a baboon, with a sharp piece of quartz affixed to one end, perhaps for engraving. It was first thought to be a tally stick, as it has a series of what has been interpreted as tally marks carved in three columns running the length of the tool, but some scientists have suggested that the groupings of notches indicate a mathematical understanding that goes beyond counting.
Read “Ishango bone” on English Wikipedia
Read “イシャンゴの骨” on Japanese Wikipedia
Read “Ishango bone” on DBpedia
Read “Ishango bone” on English Wikipedia
Read “イシャンゴの骨” on Japanese Wikipedia
Read “Ishango bone” on DBpedia
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