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The first was successfully read at Valentia on 12 August and in Newfoundland on 13 August. Further test and configuration messages followed until 16 August, when the first official message was sent via the cable: Directors of Atlantic Telegraph Company, Great Britain, to Directors in America:—Europe and America are united by telegraph.
The electric telegraph was slower to develop in France due to the established optical telegraph system, but an electrical telegraph was put into use with a code compatible with the Chappe optical telegraph. The Morse system was adopted as the international standard in 1865, using a modified Morse code developed in Germany in 1848. [1] The ...
January 22, 1848 map in New York Herald showing extent of existing and planned North American telegraph lines. At this time, the service area for the United States reached Petersburg, Virginia in the south, Portland, Maine in the northeast, Cleveland, Ohio in the northwest, and as far west as East St. Louis, Illinois.
A 1908 publication by the U.S. Department of the Navy listed on-shore and off-shore wireless telegraph stations of the world. It included a list of shore stations of the world (by country), a list of merchant vessels (by ship line), as well as United States Army, United States Navy, and United States Revenue Cutter Service stations and vessels. [9]
Tarr, Joel A., Thomas Finholt, and David Goodman. "The city and the telegraph: urban telecommunications in the pre-telephone era." Journal of Urban History 14.1 (1987): 38–80. Thompson, Robert Luther. Wiring a Continent: The History of the Telegraph Industry in the United States, 1832-1866 (1947) ends in 1866; emphasis on Western Union online
The transcontinental telegraph was completed on Oct. 24, 1861, making possible instant communication between the coasts possible for the first time. It rendered the Pony Express obsolete.
A map of the Eastern Telegraph Company's submarine cables, 1901. In the nineteenth century, the United Kingdom of Great Britain and Ireland had the world's first commercial telegraph company. British telegraphy dominated international telecommunications well into the twentieth.
Cooke and Wheatstone had their first commercial success with a telegraph installed in 1838 on the Great Western Railway over the 13 miles (21 km) from Paddington station to West Drayton. Indeed, this was the first commercial telegraph in the world. [10] This was a five-needle, six-wire [9] system. The cables were originally installed ...