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Heinrich Rudolf Hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism.
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Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on Hertzian waves or also called radio transmission
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Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessley for a distance of about a half mile.
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In June 1912 Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England.
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The first radio news program was broadcast August 31, 1920 by station 8MK in Detroit, Michigan.
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In the early 1930s, single sideband and frequency modulation were invented by amateur radio operators.
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In 1947 AT&T commercialized the Mobile Telephone Service.
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In 1955, the newly formed Sony company introduced its first transistorized radio.
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By 1963, color television was being broadcast commercially (though not all broadcasts or programs were in color), and 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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Soon, the U.S. Navy experimented with satellite navigation, culminating in the launch of the Global Positioning System (GPS) constellation in 1987.
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On November 7, 1994, WXYC (89.3 FM Chapel Hill, NC USA) became the first traditional radio station to announce broadcasting on the Internet
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From 2000 onwards, most Internet Radio Stations increased their stream quality as bandwidth became more economical.
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On January 31, 2016, webcasters who are governed by rules adopted by the Copyright Royalty Board were required to pay to SoundExchange an annual, nonrefundable minimum fee of $500 for each channel and station.[41] the fee for services with greater than 100 stations or channels being $50,000 annual.[42]
