timeline#1

Timeline created by mello
  • Period:
    -276 BCE
    to
    -194 BCE

    Eratosthenes

    Discovered the earth was round on june 19, 240 B.C
  • Period:
    100
    to
    170

    Cladious

    He believed that the earth was at the center if the universe. he made this discovery in the 2nd century.
  • Period:
    Feb 19, 1473
    to
    May 24, 1543

    Nicolaus

    he discovered his own celestial model of a heliocentric planetary system Around 1514.
  • Period:
    Jun 20, 1546
    to

    Tycho

    It hard to say when tycho discovered his theory of " The Tychonic system" but it could have been around the time before his passing.
  • Period:
    Dec 27, 1571
    to

    kepler

    By using the data that tycho had kepler discovered planets move on an ellipse. discovery was made in 1609
  • Period: to

    Newton

    He discovered his theory of gravity in 1687
  • Period: to

    einstein

    he discovered his theory of general relativity in 1915