Tech

The Ishango Bone: The World’s Oldest Period Tracker?

THE FIRST MATHEMATICIANS

An incredible artifact dated between 11 and 20,000 years old, the Ishango Bone’s notched surface has been the topic of debate since its finding in 1960.

Robert Coolman
Robert Coolman
articles/2015/10/06/the-ishango-bone-the-world-s-oldest-period-tracker/151005-coolman-ishango-bone-tease_nzd1dz
Fred de Noyelle/Godong/Corbis
Robert Coolman

Robert Coolman

PrimeViridian

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