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1 Aug 1590 Jahr - Hans and Zacharias Janssen- In 1590, they became known for inventing the compound optical microscope. This contributed to "The Cell Theory" by making it easier and more practical whilst observing cells.

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cell theory

ByOJ Williams
21 Aug 2018
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Datum:

1 Aug 1590 Jahr
Jetzt
~ 435 years ago

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