Mature Technology: The Telephone

By mkpyang

  • 1844

    1844
    Innocenzo Manzetti first had the idea of a speaking telegraph

  • 1854

    Charles Bourseul Published an article describing make and break type of telephone transmitter later created by Johann Reis

  • 1861

    Johann Philipp Reis demonstrated the telephone before the Physical Society of Frankfurt.

  • 1865

    La Feuille d’Asote reported rumors of telephones

  • 1876

    1876
    Alexander Graham Bell applies for improvement in telegraphy for electromagnetic telephones using amplitude modulation

  • 1890

    1890
    Early telephones were locally powered, using a transmitter
    The Candlestick phone was created

  • 1930

    1930
    Telephone sets were developed to combine the bell and coil.
    Cradle designs the handset phones.
    55 telephone models have been created

  • 1930

    1930
    The rotary dial phone was created

  • 1983

    Avanced mobile phone systems were created

  • Present

    Present
    Landline phones are still used today but many people have cell phones that are either touch screen or flip phones