First Transcontinental Telegraph
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The First Transcontinental Telegraph was a milestone in the formation of the United States. It served as the only method of near-instantaneous communication between the east and west coasts during the 1860s.
After development of efficient Electric Telegraph systems in the 1830s, their use saw almost explosive growth in the 1840s. Samuel Morse's first experimental line between Washington D.C. and Baltimore was first demonstrated on May 24, 1844. By 1850 there were lines covering most of the eastern states, and a separate network of lines were soon to be constructed in the booming economy of California.
The state of California was also admitted to the United States in 1850, the first state not contiguous with the eastern government. Major efforts ensued to integrate California with the other states, including sea and overland mail and passenger service. Proposals for the subsidy of a telegraph line to California were made in Congress throughout the 1850's, but it was not until 1860 that the U.S. Post Office was authorized to spend $40,000 per year to build and maintain an overland line. The year before, the California State Legislature had authorized a similar subsidy of $6000 per year.
The federal contract authorized through the Pacific Telegraph Act of 1860 was awarded to Hiram Sibley, the president of the Western Union Company. He then formed a consortium between Western Union and the telegraph companies in California: to share the efforts of constructing the overland telegraph, to split up the federal and state subsidies, and to share any profits from operation of the line. The newly consolidated Overland Telegraph Company of California would build the line eastward from Carson City (the eastern terminus of their lines), using the newly developed central route though Nevada and Utah. At the same time, the Pacific Telegraph Company of Nebraska was formed by Sibley. It would construct a line westward from Omaha, essentially using the eastern portion of the Oregon Trail. The lines would meet at a station in Salt Lake City.
Materiel for the line were collected in late 1860, and construction proceeded during the summer and fall of 1861. Major problems provisioning the construction teams were overcome, and there was a constant shortage of a source of telegraph poles on the plains of the Midwest and the deserts of the Great Basin. The line from Omaha reached Salt Lake City on October 18, 1861, and the line from Carson City was completed on October 24.
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 Transcontinental Railroad.
