Search results
Results from the WOW.Com Content Network
The first telegraph office November 14, 1845 report in New York Herald on telegraph lines coming into operation. 1 April 1845: First public telegraph office opens in Washington, D.C., under the control of the Postmaster-General. [4] The public now had to pay for messages, which were no longer free. [5]
The completion of the First transcontinental telegraph in 1861 allowed messages to be sent from coast to coast in a matter of hours rather than weeks. In the late 1860s and 1870s, the telegraph expanded rapidly westward, connecting cities like Chicago, St. Louis, Denver, and San Francisco.
The telegraph line immediately made the Pony Express obsolete, which officially ceased operations two days later. The overland telegraph line was operated until 1869, when it was replaced by a multi-line telegraph that had been constructed alongside the route of the first transcontinental railroad.
Chicago Daily Telegraph (1878–1881, became Chicago Morning Herald) Chicago Daily Times (1929–1948, merged with Chicago Sun to form Chicago Sun-Times) Chicago Democrat (1833–1861) Chicago Democratic Press (1852–1857) Chicago Evening Mail (1870–1875, merged to become Post & Mail) Chicago Evening Post (1865–1875, merged to become Post ...
Another electrical telegraph was independently developed and patented in the United States in 1837 by Samuel Morse. His assistant, Alfred Vail, developed the Morse code signaling alphabet with Morse. America's first telegraph was sent by Morse on January 6, 1838, across 2 miles (3 km) of wiring.
Sibley later served as first president of Western Union Telegraph Company. [3] In 1861, Jeptha Wade, founder of Western Union, joined forces with Benjamin Franklin Ficklin and Hiram Sibley to form the Pacific Telegraph Company. With it, the final link between the eastern and western coasts of the United States was made by telegraph.
Early proposals for an optical telegraph system were made to the Royal Society by Robert Hooke in 1684 [12] and were first implemented on an experimental level by Sir Richard Lovell Edgeworth in 1767. [13] The first successful optical telegraph network was invented by Claude Chappe and operated in France from 1793. [14]
The idea of using the telegraph to transmit a time signal for longitude determination was suggested by François Arago to Samuel Morse in 1837, [82] and the first test of this idea was made by Capt. Wilkes of the U.S. Navy in 1844, over Morse's line between Washington and Baltimore. [83]