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The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
8 December 1929: Opening of commercial ship-to-shore telephone service. [23] 3 April 1930: Opening of transoceanic telephone service to Argentina, Chile, and Uruguay and subsequently to all other South American countries. [23] 1931: The Ericsson DBH 1001 telephone was the first telephone without a separate ringer box. [32]
As phone lines became more popular—between 1942 and 1962, the number of phones in the U.S. grew 230% to 76 million—telephone companies realized they would run out of phone numbers.
Shows Bell's second telephone transmitter , invented 1876 and first displayed at the Centennial Exposition, Philadelphia. This history of the telephone chronicles the development of the electrical telephone, and includes a brief overview of its predecessors. The first telephone patent was granted to Alexander Graham Bell in 1876.
The 1940 United States census, conducted by the Census Bureau, determined the resident population of the United States to be 132,164,569, an increase of 7.6 percent over the 1930 population of 122,775,046 people. The census date of record was April 1, 1940.
1927: First commercial radio-telephone service, U.K.–U.S. 1930: First experimental videophones; 1934: First commercial radio-telephone service, U.S.–Japan; 1936: World's first public videophone network; 1946: Limited capacity Mobile Telephone Service for automobiles; 1947: First working transistor (see History of the transistor)
"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; U.S. Bureau of the Census.
Most of the American telephone system was formerly operated by a single monopoly, AT&T, which was divided in 1984 into a long-distance telephone company and seven regional "Baby Bells". Landline telephone service continues to be divided between incumbent local exchange carriers and several competing long-distance companies. As of 2005, some of ...