2400 BC
Video: © anuchit sookseanthaworn/Shutterstock
ABACUS in 2400 BC
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The ABACUS, also called a counting frame, was the first known calculating tool and is still used today in countries like China, Japan and Russia.
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Amazing - even before man could read or write, he needed to count!
Who created 'Colossus' considered the world's first electronic digital programmable computing device?
It has been estimated that their work shortened
World War 2 by as much as two to four years!
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