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Multiplication tables (7 St. 50 Min, 18 Nov 2018 Jahr – 20 St. 53 Min, 30 Jul 2019 Jahr)

Beschreibung:

Until the 1960s, complicated computations were done with the help of mathematical tables.

Zugefügt zum Band der Zeit:

Counting/Caculating Inventions

4 Nov 2019

0

0

360

Datum:

7 St. 50 Min, 18 Nov 2018 Jahr

20 St. 53 Min, 30 Jul 2019 Jahr

~ 8 months

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