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30 apr 1594 anni - back staff

Descrizione:

The backstaff is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon.

Aggiunto al nastro di tempo:

history project

Byomar cardeanas

13 nov 2017

0

0

456

Data:

30 apr 1594 anni

Adesso

~ 431 years ago

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