Cell Theory Timeline

  • Hans and Zacharias Janssen (brothers)

    Hans and Zacharias Janssen (brothers)
    The invinted the telescope and compound microscope.
  • Robert Hooke

    Robert Hooke
    In 1663 an English scientist, Robert Hooke, discovered cells in a piece of cork, which he examined under his primitive microscope. Actually, Hooke only observed cell walls because cork cells are dead and without cytoplasmic contents. Hooke drew the cells he saw and also coined the word CELL.
  • Anton Van Leewenhoek

    Anton Van Leewenhoek
    On September 17, 1683, Leeuwenhoek wrote to the Royal Society about his observations on the plaque between his own teeth, "a little white matter, which is as thick as if 'twere batter."
  • Matthias Schleiden

    Matthias Schleiden
    Matthias Jakob Schleiden was a German botanist and co-founder of the cell theory.
  • Theodor Schwann

    Theodor Schwann
    In 1836 he discovered in the gastric juice pepsin, a digestive enzyme for protein.
  • Rudolph Virchow

    Rudolph Virchow
    n 1847, he and a colleague, Benino Reinhardt, founded the Archiv für Pathologische Anatomie und Physiologie (now known as “Virchow’s Archives”), which still survives as a leading journal of pathology.