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Robert Hooke
Robert Hooke on Wikipedia Hooke publishes his book Micrographia, which contains his drawings of sections of cork as seen through one of the first microscopes. -
Anton van Leeuwenhoek
Anton van Leeuwenhoek on Wikipedia Leeuwenhoek observes a tiny living organisms in drops of pond water through his simple microscope. -
Matthias Schleiden
Matthias Schleiden on Wikipedia Schleiden concludes that all plants are made up of cells. -
Theodor Schwann
Theodor Schwann on Wikipedia Schwann concludes that all animals are made up of cells. -
Rudolph Virchow
Rudolph Virchow on Wikipedia Virchow proposes that all cells come from existing cells, completing the cell theory. -
Lynn Margulis
Lynn Margulis on Wikipedia Margulis proposes the idea that certain organelles, tiny structures within some cells, were once free-living cells themselves.
