Cell Theory Timeline

  • Spontaneous generation is created
    Jan 1, 1577

    Spontaneous generation is created

    Helmont said living things come from nonliving things and created spontaneous generation
  • Aristotle observed animals and plants (384 B.C.)

    Aristotle observed animals and plants (384 B.C.)

    He observed how animals and plants were developed. This happened in 384 B.C, not 1593
  • Janssen creates the first microscope

    Janssen creates the first microscope

    Janssesn invented the first basic microscope. Without this invention, people would have never seen cells.
  • Period: to

    Cell Theory TImeline

  • Robert Hooke introduces the word cell to science

    Robert Hooke introduces the word cell to science

    He saw the first cell under a microscope.
  • Anton van Leeuwenhoek saw the first live cell

    Anton van Leeuwenhoek saw the first live cell

    He saw the first live cell under a microscope.
  • All organic beings originate from cells

    All organic beings originate from cells

    Oken said that all organic beings originate from and consist of vesicles or cells.
  • Robert Brown described the cell nucleus

    Robert Brown described the cell nucleus

    He described the cell nucleus of the orchid.
  • Matthias Schleiden & Theodor Schwann proposed cell theory

    Matthias Schleiden & Theodor Schwann proposed cell theory

    Matthias Schleiden discovered that plants were made up of cells. Theodor Schwann discovered that animals were made up of cells.
  • sperm cells and egg cells are also cells

    sperm cells and egg cells are also cells

    Albrecht von Roelliker discovered that sperm cells and egg cells are also cells.
  • cells come from other cells

    cells come from other cells

    Rudolf Virchow concludes that cells conclude only from other existing cells.
  • disproves spontaneous generation

    disproves spontaneous generation

    Louis Pasteur ended spontaneous generation by saying that cells only come from other pre-existing cells.