Hess, Wagner, and Eratosthenes

By rcden508
  • 276 BCE

    Erastothenes Born

  • Period: 276 BCE to 1 CE

    Erastothenes

  • 236 BCE

    Chief Librarian in Alexandia

  • 234 BCE

    Finds Circumference of earth

  • Wagner graduates Astronomy

  • Period: to

    Wegner

  • World record time in a balloon

  • Thinks continents are in motion

  • Publishes The Origin of Continents and Oceans

  • Mocked in international conference for continental drift theory

  • Dies dogsledding

  • Uses sonar to learn about ocean floor

  • Period: to

    Hess

  • Hess publishes History of the oceans

  • Death of Wess