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Joseph Henry uses an electromagnet to send messages by wire between buildings. -
The radio was invented, and the idea came in. Guglielmo Marconi started developing the idea of a radio -
Guglielmo Marconi sent a wireless code message to some more than a kilometer away -
It was released and became the first radio made. -
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.
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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. -
The first paid radio ad was aired on TV in an apartments complex -
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.
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Carl Malamud creates the first internet radio program, and as time goes on it becomes popular. Without this, music apps such as Pandora.