26 févr. 2400 av. J.-C. - Abacus
Description:
It was invented by the babylonians and is made up of rows of beaded strings n stuff. It's important because it's been helping folks calculate stuff since 2400 BCE. Nowadays it's commonly used in doctor's offices to stop folks from getting boredAjouté au bande de temps:
Date:
26 févr. 2400 av. J.-C.
Maintenaint
~ Il y a 4427 ans
