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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.