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In 1665 English Naturalist Robert Hooke observed cells in a thin slice of cork with an early compound microscope.
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Anton van Leeuwenhoek, was a Dutch tradesman and scientist who observed tiny living organisms in drops of pond water through his simple microscope. he is considered by many "the Father of Microbiology."
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Matthias Schleiden, a German botanist concludes that all plants are made up of cells.
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Theodor Schwann was a German Physiologist who concluded that all animals are made up of cells.
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Rudolph Virchow proposes that all cells come from existing cells. completing the cell theory.
