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In 1673, Hans and Zacharias Jansen invented the microscope
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In his book, Robert Hooke was the first to describe and define a cell and what it was.
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In 1673, Antony van Leeuwenhoek made important discoveries in biology. His discoveries helped advance the microscope by magnifying images up to 30x.
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Louis Pasteur established the cell theory and solidified the steps of the scientific method.
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It wasn't untl 1839 until th cell was defined as the basic units of life.
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He proposed that all living cells must rise from pre-existing cells.
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The Phase Contrast Microscope was ivented.
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A DIC sytem was patented in 1953 by Normarksy.
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