Radio

Radios

By Toria M

  • First electromagnet

    First electromagnet
    Joseph Henry uses an electromagnet to send messages by wire between buildings.

  • Invented

    Invented
    The radio was invented, and the idea came in. Guglielmo Marconi started developing the idea of a radio

  • Code

    Code
    Guglielmo Marconi sent a wireless code message to some more than a kilometer away

  • Released

    Released
    It was released and became the first radio made.
  • Period: to

    Sold

    Macron’s resources were sold to General Electric. Then the RCA (NBC) was formed. And the radio was being sold. Stock prices went from $85 in 1928 to $500 in the summer of 1929.

  • Proving things

    Proving things
    The American Radio Relay League (ARRL) and a British group who were assisted by Armstrong (an engineer and college professor) proves that short waves can travel over a long distance. They did this by bounding off the upper atmosphere which can hopscotch around the world.

  • Advertisement

    Advertisement
    The first paid radio ad was aired on TV in an apartments complex
  • Period: to

    The Golden Age (WW1)

    The Golden Age of Radios. During the war, people needed radios more than ever to contact family. So they where getting sold out very fast.

  • First Apps

    First Apps
    Carl Malamud creates the first internet radio program, and as time goes on it becomes popular. Without this, music apps such as Pandora.