Old telephone

History of the Telephone

By Payton Kim
  • Period: to

    Telephone

  • Electrical Generators Are Invented

    Electrical Generators Are Invented

    Source
    Joseph Henry Invented the electrical generator. However, this was acreddited to Michal Farday.
  • Proof of Radiowaves

    Proof of Radiowaves

    Source Joseph Henry rang a bell from across a room without wires. This proved the existence of raidio waves.
  • Birth of the Telephone

    Birth of the Telephone

    Source Alexader Bell made the first telephone call to another room in his house. He said,"Mr.Waton! Come here! I want you!" This was the first phone call
  • Invention of Touch Tone Telephone

    Invention of Touch Tone Telephone

    Source Bell telephone company invented touch tone telephone. This greatly increased the speed of dialing.
  • First Transcontinental Telephone Call

    First Transcontinental Telephone Call

    Source The first transcontinental telephone call was achived by AT&T. It was made across the Panama Canal.
  • Fax is Invented

    Fax is Invented

    Source The first fax was sent by AT&T. It was a 5x7 photograph from Manhattan to Cleavland.
  • Discovery Waves in Matter

    Discovery Waves in Matter

    Source C.J. Davison discovered that matter can take on a wave shape due to sound waves. Davison earned the Nobel prize for this discovery.
  • Invention of the Synthetic Speaker

    Invention of the Synthetic Speaker

    Source H.W. Dudley invented the first synthetic speaker. He called it the "Voice Coder" or the "Voder"
  • The First Satellite Transmission

    The First Satellite Transmission

    Source It was showed an American flag on television. This allowed the telephone to make calls across the Globe.
  • Cellular Phones

    Cellular Phones

    Source AT&T invented the first cellular telephone. Earlier, portable phones were used in cars.