History of Radio

• James Clerk Maxwell published his Theory of Invisible Waves which became the basis for the invention of radio.
• James Clerk Maxwell published his Theory of Invisible Waves which became the basis for the invention of radio.
• Heinrich Hertz proved that electromagnetic waves exist.
• Samuel Morse developed a way to send messages through wired telegraphy using dots and dashes (Morse Code).
• Samuel Morse developed a way to send messages through wired telegraphy using dots and dashes (Morse Code).
• Guglielmo Marconi an Italian who worked in England for the possibility of sending messages wirelessly; he built the Marconi Wireless Telegraph Company.
• Radio was used for communication of ships at sea.
• Sparks was the name of the person in-charge of the radio room in a ship.
• Titanic was equipped with high-end radios.
• The sparks of the Titanic sent a message using Morse code before it sank. “Ran into iceberg, sinking fast.”
• A 21-year-old operator for the Marconi Wireless Telegraph Company named David Sarnoff heard the message.
• Dr. Lee de Forest ("father of radio").
• Dr. Lee de Forest invented the Audion vacuum tube that made voice transmission possible.
• Reginald Fessenden made the first voice broadcast.
• David Sarnoff took over the old Marconi Company.
• David Sarnoff took over the old Marconi Company, renamed it to Radio Corporation of America (RCA) where he served as General Manager.
• 1920 - RCA made the first radio broadcast through the first radio station known as KDKA.
• the first radio broadcast is about the presidential elections of 1920.
• RCA was then renamed to National Broadcasting Company or NBC (still under Sarnoff) which became the only radio broadcasting station in the US
• William Paley took over the struggling network called the Columbia (Phonograph) Broadcasting System.
• CBS became the rival of NBC.
• Amos and Andy was the most popular radio show from NBC. It made a cultural reflection in the US regarding discrimination
• Listening to the radio became the general anesthetic for the pain of poverty
• Comedy became the most popular form of programming
• Radio was part of the household. Housewife listening to radio drama, kids listening to adventure
• what did guglielmo marconi built

  Marconi Wireless Telegraph Company
• what company did david sarnoff too over

  Macroni Wireless Telegraph Company
• what did william paley took over

  Columbia Ponograph Broadcasting System or CBS
• when did the titanic sink

  April 14-15, 1912