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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.
By the 1880s, telegraph lines crisscrossed the country, connecting practically all towns and cities of all sizes. The telegraph was used for everything from sending personal messages to conducting business deals and transmitting news stories. [14] According to business historian H. W. Brands, the telegraph separated communication from ...
It was established in 1872 as one of 12 stations along the Overland Telegraph Line from Adelaide to Darwin and is the best preserved of the 12. [2] Beechworth Telegraph Station, Beechworth is open as a visitor's center. [3] Eyre Telegraph Station, a repeater station that operated from the 1870s until 1927, on the Adelaide to Albany, Australia ...
1844: Innocenzo Manzetti first suggests the idea of an electric "speaking telegraph", or telephone. 1849: Antonio Meucci demonstrates a communicating device to individuals in Havana. It is disputed that this is an electromagnetic telephone, but it is said to involve direct transmission of electricity into the user's body.
Contemporary map of the 1858 transatlantic cable route. 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 telecommunication
Optical telegraph lines were installed by governments, often for a military purpose, and reserved for official use only. In many countries, this situation continued after the introduction of the electric telegraph. Starting in Germany and the UK, electric telegraph lines were installed by railway companies.
The telegraph line would comprise more than 30,000 wrought iron poles, insulators, batteries, wire and other equipment, ordered from England. [9] [10] The poles were placed 80 m apart and repeater stations separated by no more than 250 km, [11] a major criterion being year-round availability of water. [12]
In 1838, Steinheil installed a telegraph along the Nuremberg–Fürth railway line, built in 1835 as the first German railroad, which was the first earth-return telegraph put into service. By 1837, William Fothergill Cooke and Charles Wheatstone had co-developed a telegraph system which used a number of needles on a board that could be moved to ...