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The start of development of the radio
Tesla gave the first public demontration of the radio -
Guglielmo Marconi is awarded a patent for the radio
The patent office in London patented “The improvements of transmitting electrical impulses and signals" for Marconi.
http://moneyweek.com/on-this-day-in-1897-marconi-is-awarded-a-patent-for-radio/ -
Marconi successfully sends a transmission acros the english channel
(I don't have an exact date, only the year)
http://www.history.com/topics/inventions/guglielmo-marconi -
The first transatlantic transmission
Marceloni recieved a transmission from England at New foundland.
http://www.history.com/this-day-in-history/marconi-sends-first-atlantic-wireless-transmission -
The radio act of 1912
This was the first act in the United States to require radio stations to be licenced by the federal government. The earlier ship acts only required that certain ships to have radio equipment installed.
http://earlyradiohistory.us/1912act.htm -
The first public radio broadcast
The transmission was conducted from the Metropolitan Opera House in New York City. This broadcast was considered unsuccesful, as the microphones couldn't pick up much of the opera singing.
http://famousdaily.com/history/first-public-radio-broadcast.html -
A patent for a Car radio is granted
William Heina is granted a patent for the car radio. -
Motorola begins selling car radios
(I couldn't find a specific date)
There were many problems with this radio, and no one could afford it.
http://researchmaniacs.com/Automobile/HistoryFirstCarRadio.html -
The walkie talkie is invented
Al goss invents the walkie talkie for the military. It is also known as the two way radio. -
First FM radio transmissions
Major Armstrong started the experimental styation that beghan to the first regular broadcast. http://www.oldradio.com/current/bc_fm.htm -
Start of World War 2
When WW2 began television stations shut down. It was up to Radios to report what was happening in the war.
http://www.personal.psu.edu/jtk187/art2/radio.htm -
Radio expands in the new century
Radio can now be edited. Live DJs are needed less, as songs can can be put together on a computer.
http://www.personal.psu.edu/jtk187/art2/radio.htm
