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Jan 7, 1420
prince henry the navigator
he would pay people for expeditions to portugal -
benjamin franklin publish the first map of the gulf stream
he help people find a way to ship things quicker to europe -
Period: to
challenger expedition
they measured ocean tempatures and discovered about 5,000 new type of ocean species -
bathysphere
he invented the vessel to go into the ocean -
bathysphere
the first time he went in the ocean with the vessel
