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Ishango Bone

This fossil mammal bone has three rows of tally marks along its length. They may have been used to add or multiply.

Ishango bone, Ishango, Democratic Republic of Congo
Image Credit: James Di Loreto, & Donald H. Hurlbert, Smithsonian Institution
Ishango Bone
Exhibit Item
Date of discovery:
Discovered by:
Species:
Site: Ishango, Democratic Republic of Congo
Page last updated: February 9, 2016