Cell Theory

  • 330 BCE

    Aristotle

    he invented the field of formal logic(invented)
  • Zachariah Jansen

    Invented telescope(invented)
  • Jan Baptist van Helmont

    discovered photosynthesis (Discovered)
  • Robert Hooke

    discovered cells (Discovered)
  • Anton van Leeuwenhoek

    Found cells under a microscope (help lead to)
  • Lorenz Oken

    the elemental structures of living organisms, (helped lead to)
  • Robert Brown

    he found the existence of structure within the cells (Discovered)
  • Matthias Schleiden

    1838-composed that all plant tissue are made of cells (Discovered)
  • Theodor Schwann

    1838- he extended that the plant tissues were composed of cells. (pushed the theory even more)
  • Albrecht von Roelliker

    the sperm and egg were composed of cells and that humans are formed of cells (Discovered)
  • Rudolf Virchow

    purposed that each cell comes from another cell (Discovered)
  • Louis Pasteur

    Discovered bacteria could be removed from boiling water(Discovered)