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January 31, 2021
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jan 1, 1510 - Mechanical Pocket Watch - First mechanical watch created in German cities of Nuremberg by Peter Henlein. These models were either fastened to belts or carried around the neck and they measured only passage of hours.

Added to timeline:

21 Nov 2019
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Maths - History of time

Date:

jan 1, 1510
Now
~ 511 years ago
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