Astronomy

The History of Astronomy

By rodriguez soto
  • 30,000 BCE

    North America

    Asian hunter-gatherers had crossed over the frozen Bering Strait to become first humans in North America.
  • 2000 BCE

    Calendar

    First solar-lunar calendars
  • 1450 BCE

    Greek

    Greek
    Earliest records of Greek, the earliest records of any European language
  • 1260 BCE

    Troja

    Troja
    Trojan War
  • 280 BCE

    Movement of Earth

    Aristarchus suggests the Earth revolves around the Sun. He provides first estimation of Earth-Sun distance.
  • 45 BCE

    Roman Empire

    Roman Empire
    Introduction of the Julian calendar, a purely solar calendar, to the Roman Empire.
  • 13

    Crusades

    Crusades
    The Crusades
  • Sep 20, 1543

    Heliocentric theory

    Copernicus publishes his heliocentric theory of the Universe.

  • Galileo´s telescope

    Galileo´s telescope
    Galileo uses telescope for astronomical purposes. He discovers 4 Jovian moons, the Moon's craters and the Milky Way galaxy.

  • Discovery of Uranus

    Discovery of Uranus
    The discovery of Uranus by Herschel

  • Discover of Neptune

    Discover of Neptune
    Johann Galle observes and discovers Neptune. His observations were prompted by mathematical calculations by French astronomer Joseph Leverrier and English astronomer John Couch Adams.

  • Discovers

    Discovers
    Asaph Hall discovers Phobos and Deimos, the moons of Mars.

  • Relativity theory

    Relativity theory
    Albert Einstein introduces special Theory of Relativity in paper Electrodynamics of Moving Bodies.

  • Sputnik

    Sputnik
    Sputnik, first object to orbit the Earth, launched by the Russians

  • Big Bang

    Big Bang
    The Big Bang probably occurred

  • dscovers

    Asaph Hall discovers Phobos and Deimos, the moons of Mars.