Period 5,eichner, fierst, history of earth timeline

Timeline created by 2013eichnena
  • (5 billion years ago) creation

    (5 billion years ago) creation
    The solar system was a swirling mass of gases and dust. This was made into the sun. The remaining planets formed by collisions of space debris.
  • (4.6 billion years ago) Creation of earth

    (4.6 billion years ago) Creation of earth
    Earh began to form by colliding with space debris. This realeased thermal energy into the atmosphere.
  • (4 billion years ago) Creating atmosphere

    (4 billion years ago) Creating atmosphere
    Volcanoes emitted gas, forming an atmosphere. Because of this happening organic molecules began to form.
  • (3.5 billion years ago) Signs of life

    (3.5 billion years ago) Signs of life
    Stromatolites, which are colonial organisms, began to form.
  • (3 billion years ago) Photosynthetic life

    (3 billion years ago) Photosynthetic life
    Photosynthetic life forms.
  • (2.2 billion years ago) Our earth

    (2.2 billion years ago) Our earth
    Earth fully develops to what it looks like today.
  • (2 billion years ago) O2

    (2 billion years ago) O2
    O2 levels were at what they are today.
  • (1.5 billion years ago) Eukaryotic

    (1.5 billion years ago) Eukaryotic
    Endosymbiosis occured. Also the first eukaryotic organisms are formed.
  • (1 billion years ago) Ozone

    (1 billion years ago) Ozone
    Ozone forms. It protected organisms from harmful UV reays so they could exist on land.