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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

ByHazel Alicante
27 Sep 2017
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Date:

jan 1, 1590
Now
~ 436 years ago
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