Results for: abax

When and who invented the abacus?

The first reported and substantiated use of an abacus, or abacus-like instrument was in Sumeria between 2,700 and 2,300 BCE - or roughly 4,700 years ago. This used a table of columns with each column equivalent to an order of… Full Answer

Who invented the abacus?

The first reported and substantiated use of an abacus, or abacus-like instrument was in Sumeria between 2,700 and 2,300 BCE - or roughly 4,700 years ago. This used a table of columns with each column equivalent to an order of… Full Answer