History of radio a system for transmitting intelligence and wireless power using the earth as the medium. Others, such as Amos Dolbear, Sir Oliver Lodge, Reginald Fessenden, and Alexander Popov were involved in the development of components and theory involved with the transmission and reception of airborne electromagnetic waves for their own theoretical work or as a potential means of communication. Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission). Marconi demonstrated the application of radio in military and marine communications and started a company
SBC Long Distance to compete for telephone service. In 2002, SWB Long Distance was renamed SBC Long Distance, as part of SBC's brand unification among its companies. In 2005, SBC purchased AT&T, and changed its name to AT&T. On April 1, 2006, SBC Long Distance began doing business as AT&T Long Distance. SBC Long Distance provides competitive long distance service within the Bell Operating Company regions of Illinois Bell, Indiana Bell, Michigan Bell, Nevada Bell, Ohio Bell, Pacific Bell, Southwestern Bell, and Wisconsin Bell. SBC Long Distance does not provide service for BellSouth Telecommunications customers, who are served by BellSouth Long Distance, nor