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Hertz proved that you could transmit and receieve eletrical signals. He sent the first eletrical waves.
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Tesla coil was invented, a component that would be used later on in radios
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Guglielmo Marconi sends the first radio signal from his labortory over a mile a half.
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Lee de Forest presents the grid audion, which was a vacuum tube that could amplify electrial signals.
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A radio broadcast on Christmas Eve was the first to play music in a broadcast.
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Radio at the time was only able to broadcast morse code, but that didn't stop 700 people from being saved.
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Amplitude Modulation radio broadcasting starts to grow in popularity and continues to do so for the next 30 years.
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Civilians use radios more often than they did prior to WWI (where military used radios during war).
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KDKA first broadcasted and is considered to be the first radio station.
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WEAF aired the first radio commerical, which lasted 10 minutes long and costed $50
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Set a standard for other radio programs to be recieved throughout the U.S. at later hours.
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The Federal Communications Commission regulates radio and electrial communications in the U.S.
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Edwin Armstrong created the FM radio, which uses frequency modulation to transport sound over the radio. It was demostrated before the FCC.
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Command Performance was broadcasted to troops during WWII to raise morale
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Top 40s start becoming popular starting in 1960s in which 40 best selling singles would be played
