Stuff

By Himathy
  • 195 BCE

    Eratosthenes

    Eratosthenes
    He was the first person to go against what everyone said and said the world was round. He also manages to use the sun as a way to measure the Earth.
  • 168

    Ptolemy

    Ptolemy
    Ptolemy was the first person to come up with a model of our solar system.His version was the wrong but it still was used for hundred of years.
  • 1534

    Copernicus

    Copernicus
    He proposed a different version of the solar system, with the Earth revolving around the Sun. He went against the previous models and it turns out that he was correct.
  • 1572

    Brahe

    Brahe
    He made the most accurte celestial obsrevations of his time.

  • Keppler

    Keppler
    Kepple created three laws that involved the planets motion.