30 juin 35000 av. J.-C. - 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.
Ajouté au bande de temps:
Date:
30 juin 35000 av. J.-C.
Maintenaint
~ Il y a 37050 ans