President Thomas Jefferson signs a bill authorizing the United States Coast Survey.
Charles Darwin publishes a paper suggesting that coral atolls are the final stage in the subsidence and erosion of volcanic islands.
James Alden discovers the first known submarine valley, California's Monterey Canyon.
Charles Wyuille Thomson, dredging from the HMS Lighting, finds sea at 4,389 meters (14,400 feet) shattering previous theories that the sea was lifeless below 549 meters (1,800 meters)
Naturalist Louis Agassiz steams from the U.S. East Coast to it's west coast around South America, collecting some 30,000 marine specimens.
H.M.S. Challenger circles the globe conducting research for the Royal society for London, laying the groundwork for modern oceanography.
The U.S. fisheries commission steamer albatross begins operations 2014 the first ship built to serve as an oceanography research vessel.
Alexander Agassiz makes long research voyages to the south pacific, collecting data and speciement from remote ocean regions.