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Italian inventor, sent and recieved the first radio signal in 1895
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American scientist R.A. Fessenden transmists human speech via radiowaves
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Marconi invents the directional radio antennae.
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Fessenden invents a high-frequency electric generator that produces radio waves with a frequency of 100 kHz.
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The cascade-tuning radio receiver and the heterodyne receiver are introduced.
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KDKA broadcasts the first regular licensed radio broadcast out of Pittsburgh, PA.
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A radio statio in NYC, WRNY begins to broadcast television shows.
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FM radio is born, but only in mono.
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Television is born. FM is moved from its original home of 42-50 Mhz to 88-108 Mhz to make room for TV
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There are six TV stations in the nation.
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Advertising is accepted on WCBN-AM.
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Warner bros music group was founded
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United States radio stations begin broadcasting in stereophonic sound
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1017 brick squad recored label was introduce
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iheart radio was invented
