TIMELINE

By Juan Ga
  • 4600 BCE

    Hadean Eon

    Priscoan Period
    Events:
    -Atmosphere and ocean form
    -Oldest rock form as Earth cools
  • Period: 4600 BCE to 570 BCE

    PRECAMBRIAN

  • 3800 BCE

    Achean Eon

    Events:
    -Photosynthesizing cyanobacteria appear
    -First unicellular life appear