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Guglielmo Marconi successfully sent the first radio signal. After many failed attempts he finally got it. However, the first signals did not go very far.
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First type of radio signals used.
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First radio signal successfully dilivered to a from a ship. This was a mjaor breakthrough in keeping contact with people on land.
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Lee De Forest created the Adion.
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He also developed the first sphisticated radio transmitter.
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Radio stations began to pop around this time.
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The number of personal radio broadcasts soared from 30 in 1922 to 556
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FRC (Federal Radio Commision) was established to control radio airwaves and etc.
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Edwin Howard Armstrong created FM, improving audio frequency
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Radio broadcast journalism establishes itself as a significant national media force as it covers the daily events of World War II.
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King of rock!
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King of Pop!
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One of the biggest music festivals ever.
