Historical Development of The Cell Thoery

By kateharmsen
  • Feb 7, 1200

    Convex Lens

    Roger Bacon used a convex lens as a magnifying glass

  • 1st compound microscope

    2 spectacle makers hans and zacharias janssen constructed the first compound microscope using two lenses inside a tube

  • robert hook

    robert hook developed the compound microscope, including the use of the iris diaphram

  • plants are made of cells

    marchello malphigi sated that all plants are made up of chambers (cells)

  • bacteria

    anton van leeuwenhoek discovered becteria from his observations

  • dutrochet

    rene dutrochet stated that all animals and plants are made up of cells

  • nucleus

    Robert Brown discovers the nucleus

  • creation of the cell theory

    Matthias Schleiden adn Theodor Schwann made the cell theory

  • completion of the cell theory

    Rudolf Virchow said that all cells come from pre-existing cells

  • mitosis

    Walter Flemming describes first cell division

  • electron microscopes

    Ernst Ruska built first electron microscope

  • synchroton

    the first synchrotron operational in the US