Cell Theory Timeline

  • Spontaneous Generation
    Nov 11, 1500

    Spontaneous Generation

  • Zacharias Jansen

    First Optical Telescope
  • Jan Baptist van Helmont

    Jan Baptist van Helmont

    Identified Carbon Dioxide
  • Anton van Leeuwenhoek

    Anton van Leeuwenhoek

    First Microbiologist
  • Lorenz Oken

    Lorenz Oken

    Animal Classification
  • Theodor Shwann

    Theodor Shwann

    Discovered first digestive enzyme

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