Big History Timeline

  • 276 BCE

    Eratosthenes

    He accurately measured the circumference of the Earth
  • 1 BCE

    Ptolemy

    Ptolemy discovered that the Earth was the center of Universe also known as the geocentric view.
  • Feb 19, 1473

    Copernicus

    Copernicus discovered that the sun is actually the center of our Universe and not the Earth this known as the heliocentric view.
  • Dec 14, 1546

    Tycho Brahe

    He was the assistant of Johannes Kepler, he discovered the irregularities in the Moon's orbits
  • Jan 22, 1561

    Francis Bacon

    Bacon was an influence to the scientific revolution by developing the scientific method and Empiricism.
  • Feb 15, 1564

    Galileo

    Galileo made a telescope to observe our Solar System, one of his observations was identifying the four moons of Jupiter
  • Mar 31, 1569

    Renes Descartes

    Descartes influenced people that, if it can't be proven then it must not be true which is also known as Descartes skepticism.
  • Dec 27, 1571

    Johannes Kepler

    Kepler discovered the planetary motions of our planets in the Solar System.
  • John Locke

    Locke came up with the idea that knowledge is all obtained throgh experience.
  • Isaac Newton

    Newton defined our laws of gravity and motion, he also broke down the idea of prisms and light.
  • Dmitri Mendeleev

    Mendeleev organized the structure of the periodic table by the element atomic mass and similarities.
  • Marie Curie

    Marie Curie discovered 2 known elements of the periodic table, radium and polonium.
  • Alfred Wegner

    Discovered that the continents used to be connected also known as Pangea.
  • Edwin Hubble

    Hubble and his research proved that the Universe was still expanding and will continue to expand.
  • Harry Hess

    He discovered that magma contributed to the continental and plate tectonic drift.
  • Henrietta Leavitt

    Leavitt was an astronomer who observed stars and their luminosity.