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The Evolution Of The Cell Theory and Discovery of The Endosymbiotic Theory

  • 1 BCE

    Eukaryotes evolve from prokaryotes

    Eukaryotes evolve from prokaryotes
  • Zacharias Jensen Invents the Microscope

    Zacharias Jensen Invents the Microscope
  • Robert Hooke discovers and names cells

    Robert Hooke discovers and names cells
    Robert Hooke was the first person to call cells, cells. He discovered them in a piece of cork and they reminded him of the cells that monks would stay in, thus inspiring the name.
  • Francesco Redi makes his discovery

    Francesco Redi makes his discovery
    Redi disproved the theory of spontaneous generation, which suggests that living things could be generated by inanimate objects.
  • Period: to

    Hooke and Newton feud

    Robert Hooke and Isaac Newton began a feud over their work and the true origin of it, which went on for many years, and even until Hooke's death.
  • Anton Van Leeuwenhock discovers bacteria

    Anton Van Leeuwenhock discovers bacteria
    Anton discovered bacteria by looking at his own dental scrapings under a microscope, and named them "Animalcules", due to their shape, which resembled animals in his eyes.
  • Matthias Schleiden discovers plants are made of cells

    Matthias Schleiden discovers plants are made of cells
    Schleiden, a botanist, concluded that plants are made of cells. Schleiden and Schwann went on to disagree about the origin of cells, and as to whether they did or did not come from preexisting cells.
  • Theodore Scwann concludes that animals are made of cells

    Theodore Scwann concludes that animals are made of cells
    Theodore Scwann was a scientist that studied animals, and eventually he concluded that all animals are also made of cells. Schleiden and Schwann went on to disagree about the origin of cells, and as to whether they did or did not come from preexisting cells.
  • Robert Remak discovers all cells come from cells

    Robert Remak discovers all cells come from cells
    Remak discovered that all cells must come from preexisting cells, and settled the debate between Schleiden and Schwann.
  • Lynn Margulis proposes the endosymbiotic theory

    Lynn Margulis proposes the endosymbiotic theory
    Margulius first suggested the idea that billions of years ago, eukaryotic cells evolve from prokaryotic cells