History of Radio

First Public Demonstration of Radio

1892

Nikola Tesla wirelessly transmitted electromagnetic energy. He made the first public demonstration of radio in St. Louis in 1893.

Establishment of the Wireless Telegraph and Signal Company

1897

Guglielmo Marconi filed for patent protection of his radio apparatus. He established the Wireless Telegraph and Signal Company in 1897

The audion tube was invented.

1906

The audion tube. it is essentially it was an amplifier to help push waves further by providing more power to the signal

First transmission of speech and music

1920

Fessenden continued his obsession with radio

First Radio Commercial

Jul 22, 1922

New York City radio station, WEAF, began selling time for “toll broadcasting.” Its first radio commercial was a 15-minute real-estate ad offering apartments in Jackson Heights, Queens.

Golden Era of Radio

1930

Radio became an escape for people to be entertained. The great depression was countered by the joys of shows and music.