History of the Earth

By julia.fang
  • 4600 BCE

    Planetary Accretion

    Planetary Accretion
    Lots of rocks and dust get pulled together by gravity to form the earth which, at the time, was molten and extremely hot and dangerous.
  • 4500 BCE

    Formation of the Moon

    Formation of the Moon
    It is theorized that a Mars-sized planet named Theia collided with earth and formed the moon.
  • 4000 BCE

    Planetary Cooling

    Planetary Cooling
    The Earth cools and the crust forms
  • 4000 BCE

    Core Formation

    Core Formation
  • 3800 BCE

    End of Heavy Bombardment

    End of Heavy Bombardment
    The end of the constant meteors, asteroids and failed planets crashing into the surface of Earth.
  • 3500 BCE

    First Appearance of Life

    First Appearance of Life
    The first signs of life appeared on Earth