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AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
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sep 4, 1590 - Hans and Zacharias Janssen

Description:

combined two convex lenses with a tube, constructing a compound microscope

Added to timeline:

19 Sep 2017
0
0
132
cell

Date:

sep 4, 1590
Now
~ 428 years ago
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