The Lebombo bone
The Lebombo bone is a bone tool made of a baboon fibula with incised markings discovered in Border Cave in the Lebombo Mountains located between South Africa and Eswatini. According to The Universal Book of Mathematics the Lebombo bone’s 29 notches suggest “it may have been used as a lunar phase counter, in which case African women may have been the first mathematicians, because keeping track of…
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