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Invented the microscope.
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Robert Hooke saw cell walls in a cork with a primitive compound microscope and named them cell from the different departments.
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Anton van Leeuwenhoek finds living cell in pond water with microscope.
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First statement: All plant tissues are composed of cells and cells are basic building blocks of plants.
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Rudolf Virchow made the third statement: All cells develop only from existing cells.
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Hans and Zacharias Jansen: A complete microscope history. (n.d.). Retrieved September 21, 2015. Microscope history: Robert Hooke (1635 - 1703). (n.d.). Retrieved September 21, 2015. Matthias Schleiden (1804-1881). (n.d.). Retrieved September 21, 2015. Theodor Schwann. (n.d.). Retrieved September 21, 2015. Anton van Leeuwenhoek: A history of the compound microscope. (n.d.). Retrieved September 21, 2015. Schultz, M. (n.d.). Rudolf Virchow. Retrieved September 21, 2015.
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Theodore Schwann updated the fist statement to be: cells are organisms and all organisms consist of one or more cells. He added the second statement: The cell is the basic unit of structure for all organisms.
