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Aristotle said that living things come from non-living things.
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Hans and Zacharias Janssen created the first compound microscope.
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Jan Baptista van Helmont discovered the principles of photosynthesis.
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Robert Hooke discovered the cellular composition of cork and introduced the word cell to science.
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Anton van Leeuwenhoek improved magnification of microscopes by the polishing lenses.
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Anton van Leeuwenhoek discovers animalcules.
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Anton van Leeuwenhoek discovered bacteria from a sample of saliva from his mouth.
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Lorenz Oken said that all livings things originate from consistant cells.
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Robert Brown discovered and named the nulceus of cells.
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Theodor Schwann discovered that animals were made up of cells.
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Albrecht van Roelliker realizes that sperm and egg cells are cells.
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Rudolph Virchow stated that all living things come from other living things.
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Matthias Schleiden discovered that plants were made up of cells.
