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Marconi sent and recieved the fist radio signal.
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The audio tube amplifier was invented
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The radio helped reach out for help when the Titanic sank
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The fist continuous broadcast was played
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the radio station KDKA was made
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This was the dawn of advertising the fist ad was broadcasted and lasted ten minutes
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Radio started to become a regular household item
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FCR (Federal Radio Commission) was established
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this is when fm radio was made but changed later to broadcast music
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During the 30's and 40's was considered the golden era of radio
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In the late 1930's t.v. made its first appearance / came out
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by 1940 modulation were established commercial modes
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after the tv came out radio had to find a way to stay on top so they started playing music
