7 agos 130 año aC - Abacus
Descripción:
The abacus is a calculating tool that was in use in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the written Hindu–Arabic numeral system. It was a way for merchants who traded goods to keep count of goods they bought and sold (to help count large numbers).Añadido al timeline:
fecha:
7 agos 130 año aC
Ahora mismo
~ 2156 years ago
