Theories of Origins of Life

  • 1 BCE

    Creationist

    God Created Life, that was what the bible said.
  • Jan 1, 1577

    Spontaneous Generation

    Life was created from one day to another (spontaneous)
    Life comes from non living matter.
  • Theory of Catastrophism

    "Catastrophic events revolution occurs upon earth
    from time to time which completely destroys all organisms. New organisms, then, suddenly form from inorganic matter" -Georges Cuvier 1832
  • Theory of Panspermia

    "Protoplasm’ reached the earth in the form of spores or germs or other simple particles from some unknown part of the universe with the cosmic dust, and subsequently evolved into various forms of life." -Ritcher 1865
  • Eternity of life

    "Different types of living beings have always existed on earth and shall continue to exist forever, changing only in form."-Preyer in 1880