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