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Marconi invents radio
In 1895 Marconi invents the radio he may not have been the first but he was the best at PR. -
Audion Tube
In 1906, Lee De Forest, created (or "borrowed" the idea for) the audion tube, a vacuum tube that amplified signals. -
Radio Stations
Radio Stations became a thing in 1920 and are still around today -
Dawn of Advertising
In 1922 WEAF aired a 10 minutes 'commercial' or toll broadcast, for an apartment complex charging $50 -
FRC
Organized licensing, assigned radios station frequencies,call letters, and power limits -
Start of Golden Era
Golden era begins in the middle of the Great Depression