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jan 1, 200 BC - Astrolabes
Description:
Astrolabes was a navigational tool that was used to measure the altitude. It was created by a Greek astronomer, Hipparchus.
Added to timeline:
4 Nov 2017
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321
Aaliyah Lopez
Timeline
Date:
jan 1, 200 BC
Now
~ 2225 years ago
Images: