timeline of discoveries of models of the universe

By ela.turgutoglu
  • 500 BCE

    Eudoxus and a geocentric universe

    Eudoxus and a geocentric universe
    The ancient Greek mathematician Pythagoras suggested that the Earth is spherical
  • 150 BCE

    Ptolemy and epicycles

    Ptolemy and epicycles
    Ptolemy knew that the planets don’t appear to orbit in perfect circles around the Earth.
  • 1021

    Early forms of Newton’s laws

    Early forms of Newton’s laws
    The Iranian polymath Abū Rayḥān al-Bīrūnī realised that acceleration is related to non-uniform motion

  • Bradley and a moving Earth

    Bradley and a moving Earth
    Bradley and a moving Earth