History of Oceanography Ashton Issleib 5th Period

  • 325

    Pytheas BC

    Contributed to navigation methods.
  • Jan 5, 1400

    Prince Henry The Navigator

    A marine observatory was established to improve portuguese sailing.
  • Jan 7, 1498

    Vasco de Gama

    Sailed around Africa and continued on toward India.
  • Jan 7, 1521

    Ferdinand Magellan AD

    Used circumnavigation to travel the globe.
  • James Cook

    Published the longitudes he found by using astronomy and mathematics.
  • Benjamin Franklin

    The first map of the gulf stream was published.
  • Matthew Maury

    Published a book on oceanography.
  • Challenger Expedition

    The purpose of the expedition was to gain more knowledge of ocean life and its chemical and physical properties.
  • SONAR

    Sound Navigation And Ranging
  • Bathysphere

    The invention of a submersible sphere that could be lowered into the ocean on a cable, providing a better look at ocean life.
  • Ptolemy AD

    Developed ways of making maps and also used longitude and latitude lines.
  • Eratosthenes BC

    Determined the circumfrence of the world.
  • Eric the Red AD

    Sailed from Greenland to Baffin Island (which he discovered).
  • Greeks - Herodontus BC

    Made a map of the Mediterranean Sea
  • Phoenicians BC

    Circumnavigated Africa and sailed along the North Atlantic Ocean.