History of the Telephone

By LAX24

  • Telephone was Thought Up

    Telephone was Thought Up
    SourceElisha Gray and Alexander Graham Bell both independently created the telephone. Their telephones transmitted speech electrically.

  • Multiple Telegraph

    Multiple Telegraph
    SourceAlexander Graham Bells research progressed to the extent that he could inform his father-in-law. He informed him about the multiple telegraph.

  • Harmonic Telegraph

    Harmonic Telegraph
    SourceHe discovered he could hear sound over a wire. He discovered this while experimenting with hamonic telegraph.

  • Telephone was born

    Telephone was born
    SourceAlexander Graham Bell created the telephone. Many telegraphs died that day.

  • Telephone Company

    Telephone Company
    SourceThe telephone became a company. It was named AT&T.

  • First Mobile Telephone Call

    First Mobile Telephone Call
    SourceA random driver made the first mobile telephone call. He did this in St. Louis.

  • Picture Phone

    Picture Phone
    SourceAT&T created the first picture telephone. It was very crude.

  • First Mobile Phone

    First Mobile Phone
    SourceMotorola created the first mobile phone. It was cordless

  • English/Spanish Translator

    English/Spanish Translator
    SourceAT&T made an English/Spanish Translator. It was made in a hallway.

  • Video Communication

    Video Communication
    SourceAT&T made the Model 70. This made video communication possible.