wHO HAS INVENTED aBACUS

Asked by SHETALWAR@REDIFFMAIL.COM 10 years ago 6/27/2015 8:16 AM

Last updated by Cat 5 years ago 10/3/2020 4:03 AM

Answered by Cat 5 years ago 10/3/2020 4:03 AM

The exact origin of the abacus is still unknown but it has been used for centuries in the ancient Near East, Europe, China, and Russia.