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1 Jan 1200 Jahr - Suan-Pan Abacus

Beschreibung:

A Chinese abacus[1] used for performing basic number calculations.

[1] https://www.ee.ryerson.ca/~elf/abacus/history.html

Zugefügt zum Band der Zeit:

history of computing hardware

2 Mär 2021

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Datum:

1 Jan 1200 Jahr

Jetzt

~ 826 years ago

Abbildungen:

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