That cannot be determined with any accuracy as most societies using it were already using it before developing either written or oral histories. Something like 8,000 to 10,000 years ago is probably the best one can guess.
the abacus is made by the Egyptian in Egypt.
The abacus has been around for millennia, in various countries. No record of the inventor was made.
the history about the abacus is that 3000 years ago the chinese invented the abacus. The abacus was made of wood parrelel rod and beads.
It was made in 1815
For a calculater
Originally in China.
The abacus first appeared around the period 2700-2300 BC in Sumeria.
The Chinese abacus.
actient china
The answer is China.
actient china
the chinese and they made the wheel barrow