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jan 24, 1400 - Grinding lenses becomes work and spectacles are made.

Description:

People in Italy start to grind lenses and spectacles are made to improve eyesight.

Added to timeline:

History of the Microscope

ByAlyssa Bourke

13 Dec 2017

0

0

521

Date:

jan 24, 1400

Now

~ 626 years ago

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