Preceden

Golden Age of Radio

Main

First transmission of human voice

1909

Lee de Forest invents the Triode.

First Radio Station

1920

The first commercial radio station.

Golden Age of Radio

1920 - 1962

CBS Founded

1927

The CBS is founded.

Sensor of Radio is 10cm

1931

First ever Crime Brodcast

January 3, 1943

Missing body brodcast.

Silver Age

1950 - 1960

Sensor is 5cm

1954

Revival Age

1960 - 1970

End of the Golden Age

September 30, 1962

Modern Age

1970 - 2013

Sensor is 1mm

2002

Sensor is 200nm

2007