Question

Abacus was invented about...............years ago

Answer 1

This simple calculating machine helped to count large numbers. It is presumed that theearliest abacus was invented about 5000 years ago. Some historians believe that the abacus was invented by the ancient Chinese while some believe that it was invented bythe Babylonians or the Egyptians.

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Answer 2

Hey mate!!!

⏩Abacus was invented 5000 years ago.