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In 1895 Marconi was beleived to be the first person to send and recieve a message wirlessly.
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In 1906, Lee De Forest came up with (or borrowed) the idea of an amplifier. It was the first of its kind to take a simple signal and amplify it. It helped people send signals further.
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In 1920 Framk Conrad developed the first radio station entitled "8XK". He basically took a microphone, lied it against a phonograph and let it play.
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The first Radio advertisment was aired. Running for about ten minutes on the radio station "WEAF" charging 50$ to have them play it. This started the development of Radio making money.
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600 radio stations had risen out of the dark after its humongous popularity and following!
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The Federal Communications Commission was developed after the explosion of free-lance radio stations popping up everywhere.
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When Television came out it smashed the radio. All the radio advertisments left and transfered to Television, Even the radio shows jumped ship and left the failing entertainment way.
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Xm radio was introduced and offered a totally new way of listening to radio. Higher Qualty!!
