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mar 7, 1500 - Счеты

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MAR 7, 1500
Счеты
Более 5000 лет назад были изобретены счеты (Китай). Создавались различные технические средства, облегчающие счет.

Added to timeline:

история развития вс

ByИрина Морозова

31 Mar 2019

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326

Date:

mar 7, 1500

Now

~ 525 years ago

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