The Development of Cell Theory

  • Invention of microscope

    Zacharias Jansen invents the worlds first compoun microscope.
  • Where it all began

    Aristotle observed plants and animals in 845 B.C.
  • Discovery

    Jan Baptist Van Helmont did the first biological experiment in which all ingerdiants were measured accurately and all changes noted precisely.
  • Describing through a microscope

    Robert Hooke is the first person to use the word "cell" to describe microscopic structures.
  • Microscopes

    Antoni Van Leeuwenhoek learns to grind lenses and assemble them into simple microscopes.
  • Microscopic details

    Anton Van Leeuwenhoek was the first to use a microscope to view things like pond organisms, bacteria and blood cells.
  • Discovery

    Anton Van Leeuwenhoek discovered "animacules'
  • Protozoa and Bacteria

    First protozoa and bacteria discovered by Anton Van Leeuwenhoek.
  • Discovery

    Anton Van Leeewenhoek discovered bacteria from a sampke of saliva from his mouth.
  • The center of the cell has been seen

    The center of the cell has been seen
    Robert Brown discovered the nucleus in plant cells.
  • Cell Theory was found

    Cell Theory was found
    Cell Theory was created in 1838
  • Cells are building blocks in plants

    Cells are building blocks in plants
    First statement was discovered about cells, all plant tissues are composed of cells and cells are the basic building blocks of plants. Discovered by Matthias Jakob Schleiden.
  • Discovery

    Discovery
    Matthias Schleiden discovered that plants were made up of cells.
  • Cell becoming more complex

    Cell becoming more complex
    Cell was defined as the structure of living things by Matthias Schleiden and Theodor Schwann
  • Discovery

    Discovery
    Theodor Schwann discovered that animals were made up of cells.
  • Where life comes from

    Where life comes from
    Albrecht Von Roelliker discovers that sperm and eggs are also cells.
  • Pre-existent Cells

    Pre-existent Cells
    Rudolph Virchow proposes that all living cells come from pre-existing cells.