Cell Theory Timeline

  • Nov 7, 1500

    Theory of spontaneous generation

    Theory of spontaneous generation
    rediA thought that organic matter can create living organisms from inanimate objects. This was beilved by most people in the middle ages up until the 19th century . Francesco Redi dissporved this theory.
  • Invention of the Microscope

    Invention of the Microscope
    Zacharias Jansen and his father experimenting with some lenses. They then made the microscope. Then later dicovered that it enlarged the image a maximum of 9x.
  • Invention of "gas"

    Invention of "gas"
    helmontJan Baptist van Helmont first one to identify the air of being made up of diffrent gases.
  • Dissovery of the cell

    Dissovery of the cell
    hookeRobbert Hooke discovered the cell. While looking at a cork he saw empty spaces and he called them cells.
  • Improving Microscope Lenses

    Improving Microscope Lenses
    <a href='http://www.ucmp.berkeley.edu/history/leeuwenhoek.html' >Anton van Leeuwenhoek cleared the lenses to improve the image.
  • Single-celled Organisms

    Single-celled Organisms
    lwUsing the microscope Leeuwenhoek improved, he was the first to observe single-celled organisms.
  • Robert Brown Cell Theory

    Robert Brown Cell Theory
    rbUsing the microscope, Brown made significant discoveries on the nucleus and cyloplasm.
  • Theory of evolution

    Theory of evolution
    Lorenz Oken came up with a new system of animal classification that displayed the path of evolution.
  • Cell Theory

    Cell Theory
    Matthias Schleiden and by Theodor Schwann came up with this idea which was the theory that cells form the fundamental structural and functional units of all living organisms.
  • Discovery of cells in plants.

    Discovery of cells in plants.
    <a href='http://scienceworld.wolfram.com/biography/Schleiden.html' >Matthias Schleiden also known as the other cofownder of the cell theory, discovered that calls were also in plants.
  • Addition to the Cell Theory

    Addition to the Cell Theory
    <a href='http://scienceworld.wolfram.com/biography/Schwann.html' >Theodore Schwann applied the previous cell theory to animals and found that all mature animal tissue is composed of embryonic cells.
  • Nerves

    Nerves
    <a href='http://www.newadvent.org/cathen/07212b.htm' >Jan Baptist van Helmont documented the connection between nerve fibers and the groups of cells they are attatched to.
  • Every cell stems from another cell

    Every cell stems from another cell
    Rudolph Virchow's major contribution was finding that not the entire organism gets sick, only a certain group of cells and also said that every cell comes from other cells.
  • Keeping people healthy

    Keeping people healthy
    <a href='http://www.historylearningsite.co.uk/louis_pasteur.htm' >Louis Pasteur had break throughs on the immune system and vaccinations and also invented Pasteurization, a process to stop food and liquid from making people sick.
  • First Principle of The Cell Theory

    First Principle of The Cell Theory
    aristotleAristole first theory was that all living things are made of cells.