Timeline of the Earth

By Jimin Seo
  • 4540 BCE

    Earth formed

    Dust and rocks were combined for a long time and gradually it formed the earth.
  • 4500 BCE

    Collision with Theia

    A planet called Theia head straight to the earth and collide to it. By collision both planet became liquid.
  • 4500 BCE

    Formation of the Moon

    After the collision, tons of debris blasted out to the space and it circled the earth. Some debris that was fallen out from the orbit formed the moon.
  • 3900 BCE

    Water

    The debris that were leftover from the solar formation, which contains a water crystal, bombard the earth and pools of water was made on the earth.
  • 1000 BCE

    Core Formation

    The Pluto-size ball of solid iron that makes up Earth's inner core formed between 1 billion and 1.5 billion years ago.