History of Radio

By tdarche

  • 1864

    1864
    James Clerk Maxwell found that electromagnetic waves could propagate through free space.

  • 1888

    1888
    Heinrich Rudolf Hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism.

  • 1894

    1894
    Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves

  • 1897

    1897
    Guglielmo Marconi established a radio station in England

  • 1900

    1900
    Roberto Landell de Moura transmitted the human voice wirelessly for a distance of approximately a half mile.

  • 1906

    1906
    Reginald Fessenden used a synchronous rotary-spark transmitter for the first radio program broadcast, from Ocean Bluff-Brant Rock, Massachusetts.

  • 1909

    1909
    Guglielmo Marconi won the Nobel Prize of physics

  • 1920

    1920
    2ADD aired the first broadcast of a sporting event.

  • 1948

    1948
    AT&T introduced Mobile Telephone Service to one hundred towns and highway corridors

  • 1993

    1993
    Carl Malamud introduced Internet radio