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jan 1, 1590 - Hans and Zacharias Janssen
Description:
In the year 1590's Hans and Zacharias were known for inventing the compound optical microscope which made it easier and more practical to observe cells.
Added to timeline:
Cell theory timeline Hazel Alicante
By
Hazel Alicante
27 Sep 2017
0
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633
Date:
jan 1, 1590
Now
~ 436 years ago
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