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26 abr 1495 ano - Аль-Каши

Descrição:

Трактат «Ключ арифметики» описывает шестидесятеричную систему счисления.

Adicionado na linha do tempo:

Арифметика

9 dez 2017

Data:

26 abr 1495 ano

Agora

~ 529 years ago

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