History of Early Sea Voyages

Front

When was the first recorded sea voyage for explorations?

Back

2,750 BC

Front

Who first recorded sea voyage for explorations?

Back

Egyptian s

Front

• -2,000-500 BC routinely crossed ocean over 1,000's of kilometers in canoes made from tree trunks or planks that were sewn together with fiber rope and cracks sealed with tree sap 

  • used the north star and constellations to navigate

Back

POLYNESIANS

Front

• Were the first to use mathematics to make sophisticated maps for seafaring

Back

GREEKS

Front

• (264- 194 BC)- Calculated the Earth's circumference and invented the 1st longitude/latitude system

Back

• Eratosthenes

Front

• lines run east-west

  • They never intersect and are called parallels

Back

• Latitude

Front

• lines run north-south

  • Begin at one pole and end at the other

  • Sometimes called meridians

  • The 0^o or Prime meridian runs through Greenwich, England 

Back

• Longitude

Front

• travelled the oceans from 790 A.D. to 1100 A.D. when global warming freed the North Atlantic of ice.

Back

• Vikings

Front

• landed in Newfoundland, Canada

Back

• Leif Eriksson

Front

• 1000 A.D. Invention of the magnetic compass

• Ships with central rudders and watertight compartments

Back

Chinese