Transatlantic telegraph cable
Transatlantic telegraph cables were undersea cables running under the Atlantic Ocean for telegraph communications. Telegraphy is an obsolete form of communication, and the cables have long since been decommissioned, but telephone and data are still carried on other transatlantic telecommunications cables.
Landing of the Transatlantic telegraph cable of 1866 at Heart's Content, Newfoundland, by Robert Charles Dudley, 1866
Tickertape recording of Queen Victoria's message to James Buchanan
A U.S. postage stamp issued to commemorate the Atlantic cable centenary
The ships used for the first attempt, at Valentia Island.
Submarine communications cable
A submarine communications cable is a cable laid on the seabed between land-based stations to carry telecommunication signals across stretches of ocean and sea. The first submarine communications cables were laid beginning in the 1850s and carried telegraphy traffic, establishing the first instant telecommunications links between continents, such as the first transatlantic telegraph cable which became operational on 16 August 1858.
Submarine cables are laid using special cable layer ships, such as the modern René Descartes [fr], operated by Orange Marine.
A telegraph stamp of the British & Irish Magnetic Telegraph Co. Limited (c. 1862).
Operators in the submarine telegraph cable room at the GPO's Central Telegraph Office in London c. 1898
Landing of an Italy-USA cable (4,704 nautical miles long), on Rockaway Beach, Queens, New York, January 1925.