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The earliest magnetic compass is seen in the Han and Tang Dynasty. This paved the way for more developed compasses, aiding many sailors as they traveling through unknown seas. (navigation)
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Venerable Bede, an historian, connected the tidal waves of the ocean to the phases of the moon and its gravitational pull, leading to the discovery of a major natural phenomenon. (scientific research)
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Giovanni de Verrazano sailed from the coast of Florida to New Jersey and charted the geography of the Atlantic Coast to educate many of navigating the land in the future. (navigation)
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Cornelius Drebbel, appointed an inventor by King James I, produced the first workable submarine, which would later be used for many military operations. (military)
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John Lethbridge was an engineer responsible for designing the first dive suit, consisting of a barrel of air and a window. This allowed the idea of human observation of the ocean to become possible. (scientific research)
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By using a metal box, surrounding a 19th century camera, William Thompson was able to take photographs underwater, leading to modern day cameras which allow many to observe oceans' wonders. This invention has educated many on what oceans looks like. (scientific research)
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John Murray and Charles Wyville Thompson led the expedition to gain scientific knowledge of the ocean and its inhabitants. Labs were on board the HMS Challenger ship where scientists studied ocean temperatures in different areas, sea creatures, and the contents of the sea floor, etc.. (scientific research)
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This invention allowed submarines to detect each other, which increased military advantages. (military)
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An oceanographer, John Swallow, developed the the swallow float which detected underwater currents of the ocean. It released a signal, allowing a boats to follow it. (scientific research)
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Victor Vescovo took part in an exploration of the deepest parts of the 5 seas where he dove 10,927 meters in the Mariana Trench. This is the farthest anyone has ever dove into the ocean. (scientific research)
