2 h 52 m, 2 ene 232 año aC - Ababacus
Descripción:
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool that was in use in Europe, China and Russia, centuries before the adoption of the written Hindu–Arabic numeral system. The exact origin of the abacus is still unknownAñadido al timeline:
fecha:
2 h 52 m, 2 ene 232 año aC
Ahora mismo
~ 2257 years ago
