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jun 30, 35000 BC - W: Lebombo bone

Description:

World: Found in Africa. the earliest known mathematical instrument. It was a baboon fibula (calf bone) with 29 equidistant markings, used perhaps as a measuring device or to track the lunar cycle.
Equidistant implies that it might be used as a ruler/ number line! Could also distinguish this from a random tally bone.

Added to timeline:

History of Mathematics 2019

ByAly
16 Jul 2019
2
0
1313

Date:

jun 30, 35000 BC
Now
~ 37050 years ago
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