Question

when was abecus is invented and in which country​

Answer 1

Explanation:

The abacus was invented in China, around 1300 BC. It was popularized during the Ming dynasty (1368 AD to 1644 AD), and has been a very popular calculating device ever since. Other early forms of the abacus include the ancient Roman abacuses consisting of a sand-covered wax tablet, marked table,, or grooved table.

Answer 2

Explanation:

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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

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