Modern communication a history of the telephone

Modern History of Communication

By ahyland
  • Period: to

    History of Modern Communication

    A Brief history outlying the history of modern communication devices to technologies being dreamed of tomorrow.

  • Invention of Telegraph

    Invention of Telegraph
    Joseph Henry and Edward Davey. In 1835, both had independently and successfully demonstrated electromagnetic relay, where a weak electrical signal can be amplified and transmitted across long distances.

  • Alexander Bell invents the telephone

    Alexander Bell invents the telephone
    Alexander Graham Bell laid out the foundation for electromagnetic telephones.