Cell Theory Timeline

  • Hans and Zacharias Jansen produced the first compound microscope.

  • Robert Hooke discovered cells.

  • Francesca Redi discovered that calls come from existing cells.

  • Anton van Leeuwenhoek discovered single celled organisms.

  • Lazzaro Spallanzani discovered that spontaneous generation was incorrect

  • Rene Dutrochet discovered osmosis.

  • Matthias Schleiden discovered that plants were composed of cells.

  • Theodor Schwann discovered plants were made of cells

  • Rudolf Virchow discovered animals were made of cells

  • Ernst Ruska invented the first electron microscope.

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