1 janv. 300 av. J.-C. - Abacus (300 B.C.-1200 A.D.)
Description:
The abacus is a device that dates back from 300 B.C.-1200 A.D. , it has beads/disks that can move up or down in order to help people what they’re calculating.Ajouté au bande de temps:
Date:
1 janv. 300 av. J.-C.
Maintenaint
~ Il y a 2327 ans