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1 Jan 1595 Jahr - Han and Zacharias Janssen created the first compound optical microscope that magnifies to 9x. By doing this, it contributed to the cell theory, making it easier and more practical to observe cells.

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Cell Theory Historic TImeline

ByAlana Cayabyab

27 Sep 2017

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1 Jan 1595 Jahr

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~ 431 years ago

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