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Ocean diving begins. Coastal cultures begin diving in order to gather food.
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The first sea routes were created. In search of tin and other resouces the ancient Phoenicians create sea routes.
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The first indicated use of goggles. Artwork on Peruvian pottery shows divers wearing goggles and holding fish.
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The Chinese send out 7 voyages made up of over 300 ships.
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Englishman John Lethbridge creats a completely enclosed diving dress.
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French scientist Sieur Freminet invents a helmet-hose diving apparatus, in which air is pumped from the surface with an egg-shaped reservoir. The air reaches the diver through a hose attached to the helmet. This system provides a constant supply of air to the diver.
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President Thomas Jefferson signs a law establishing the United States Coast Survey. This organization studies the eastern coast of the United States and returns data about a wide range of maritime subjects.
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The U.S. Navy contracts French emigrant Brutus de Villeroi to design a submarine.
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William Beebe and Otis Barton embark on a deep sea expedition in a tethered sphere known as a bathysphere. They reach a depth of 3,000 feet.
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World War II, electronic navigation systems are developed for precision bombing.
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Doctor Sylvia Earle sets a new record for a deep dive in a dive suit. Using a new pressurized metal suit known as a JIM suit, she walks unassisted at a depth of 1,250 feet.
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Dr. Robert Ballard, with the help of a tiny robotic submarine named Jason, discovers the wreck of the Titanic.
