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In 1888, Heinrich Rudolf Hertz proved that it was possible to transmit airborne electromagnetic waves
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Starting in 1894, Guglielmo Marconi finally finished building the first complete, commercially successful wireless telegraphy system.
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On December 24th, 1906, Reginald Fessenden transmitted the first radio program broadcast. He broadcasted a bible reading and O Holy Night.
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Marconi opened the first ever factory for radio in Chelmsford, England in 1912.
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The first radio news program was made by station 8MK in Detroit, Michigan in 1920
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Single sideband and frequency modulation were invented by amateur radio operators in the early 1930's.
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Commercial television transmissions started in North America and Europe
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In 1954he Regency company introduced the first pocket transistor radio.
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By 1963, the first radio communication satellite, Telstar, was launched
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In the 1970s, LORAN became the premier radio navigation system.
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In 1987, the U.S. Navy worked with satellite navigation, creating the GPS in 1987.
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Internet radio was started by Carl Malamud. In 1993, he launched "Internet Talk Radio" which was the first computer-radio talk show.
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Since 2000, most Internet Radio Stations increased their stream quality as bandwidth became more economical.
