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Means of comunication

By Alla50
  • 1000 BCE

    Thousands of years ago

    Thousands of years ago
    Fire, smoke, sound of drums, doves were used for centuries as means of long distance communication.

  • electric telegragh

    electric telegragh
    The long distance communication changed when electric telegragh was invented by the Russian scientist P.L.Shilling.

  • telephone

    telephone
    A.G.Bell invented the first telephone.

  • the first telephone exchange in Russia

    the first telephone exchange in Russia
    The first telephone exchange was opened in Moscow.

  • the first coast to coast line

    the first coast to coast line
    The first coast to coast telephone line between San Francisco and New York was opened.