Images

Oceanography

By Cheaz plaint
  • 200 BCE

    Circumference of Earth Discovered

    A Greek astronomer name Eratosthenes is the first person to find the circumference of the earth using only angles and shadows.
  • 150 BCE

    Ptomelys' Map

    Ptomelys' Map
    Greek astronomer and geographer Ptomely creates a map of the planet (or to his time, "The Ancient World") including the longitude and latitude lines, all the continents, along with all the oceans.
  • 900

    Viking Expeditions Begin

    Vikings begin to colonize and explore Iceland, Newfoundland, and Greenland. They discovered these places using the north star leading them to be the first ones to do this.
  • 1578

    First Plans For a Submarine

    English mathematician William Bourne creates the first known plans for an underwater boat or better known as a submarine. He drew it having a leather covered wooden frame and being rowed from the inside.

  • First Waterproof Suit

    First Waterproof Suit
    A guard in the french navy named Chevalier de beauve creates a lead shoes water proof suit. Its air is provided through 2 tubes made of leather attached to the helmet.