Question

who has made abacus and numbers ???​

Answer 1

Answer:

Abacus is an instrument that was invented some 3000 years ago primarily in China, which later spread through countries like Korea, Japan, Taiwan, Malaysia, etc. It was used in ancient times for calculating numbers through the Basic Arithmetic System.

For example, the Arabic numeral system we're all familiar with today is usually credited to two mathematicians from ancient India: Brahmagupta from the 6th century B.C. and Aryabhat from the 5th century B.C. Eventually, numbers were necessary for more than simply counting things.