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  Discoverd the cell while looking a a silver cork under a microscope lens.
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  Discovered bacteria while doing research for the Royal Society for years and coming across the white stuff between his teeth (plaque).
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  Discovered the phenomenon osmosis; discovered that cells make up plants
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  Discovered that any function performed by an organisim is performed as well as by cells.
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  Based on his studies on living organisms, he concluded that many living organisms are all composed of a single cell and that the substance inside of a living organism is similar.
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  Understood the fundemental importance of the cell liffe
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  Idenified and named the disease leukemia while performing a microscopic examination of tissue for an autopsy.