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First Radio Signal
Marconi sends and recieves first radio signal -
Audion Tube
Lee de Forest invents the Auion tube -
First Clear Transmission
First clear human voice transmission on 9XM -
AM
Fressenden and Lee de Forest invented AM -
TV
Radio first used to transmit pictures visible as TV -
Radio Advertising Begins
WEAF aired a 10 minute commercial for an apartment complex -
FCR
The FCR is established in order to organize stations and make bigger stations more widely heard -
FM
Edwin H. Armstrong invented and patented FM radio -
Birth of Elvis
Elvis Presly is born -
W1XOJ
The first experimental FM station is granted a construction permit -
German Radio
Germany starts using FM radio -
Pocket Radio
Pocket transistor Radio is introduced -
That's Alright Mama
Elvis releases "That's Alright Mama" -
The Beatles
The Beatles appear on the Ed Sullivan Show -
GPS
The GPS constellation of satelites was launched