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Heinrich Rudolf Hertz discovered proved that transmitted airborne electromagnetic waves existed and confirmed Maxwell's theory of electromagnetism
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Gugliemo Marconi creates a wireless telegraphy system that is commercially succesful
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Marconi later builds a radio system with a range of 2 miles
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The first radio broadcast is done in Ocean Bluff-Brant Rock, Massachusetts.
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The first radio system is built in Chelmsford, England
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the first radio news program is created in detroit
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Sideband Frequency and frequency is invented by amatuer radio operators
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The first mobile telephone service is commericalized by AT and T
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A radio small enough to fit in your pocket is invented
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Color television starts being broadcast commercially
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LORAN becomes the main radio navigation system
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the global positioning system is launched in 1987 and uses satellite navigation
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The US Army and DARPA creates radio that changes frequency with programming
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Radio transmission through through the internet becomes popular
