// todo need optimize like in event.jsp. Add indexing or not indexing this page. Multiplication tables (7 ore 50 min, 18 nov 2018 anni – 20 ore 53 min, 30 lugl 2019 anni) (Il nastro del tempo)
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Multiplication tables (7 ore 50 min, 18 nov 2018 anni – 20 ore 53 min, 30 lugl 2019 anni)

Descrizione:

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

Aggiunto al nastro di tempo:

Counting/Caculating Inventions

ByEmily Stark
4 nov 2019

Data:

7 ore 50 min, 18 nov 2018 anni
20 ore 53 min, 30 lugl 2019 anni
~ 8 months
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