Timeline Flashcards
wirelessly transmitted electromagnetic energy. He made the first public demonstration of radio in St. Louis in 1893.
Nikola Tesla (1892 to 1893)
filed for patent protection of his radio apparatus. He established the Wireless Telegraph and Signal Company in 1897.
Guglielmo Marconi (1896 to 1897)
First transAtlantic signal sent-by Marconi from Ireland to Canada
1901
Amateur (today known as “ham”) radio introduced to the U.S. via a Scientific American article on “How to Construct an Efficient Wireless Telegraphy Apparatus at Small Cost.”
1902
is the 1st to transmit a program of speech and music.
Reginald Fessenden 1906
First radio transmission from an airplane
1910
All US radio stations that are not needed are closed by the government as WWI begins
1917
The first on-air advertisement was carried by a New York station
1922
The first permanent national network, NBC, was formed. CBS followed a year later.
1926
The Federal Radio Commission established to bring order to chaotic airwaves
1927
FDR broadcast the first of his 30 “fireside chats”
1933
CBS Radio broadcasts H.G. Wells’ classic The War of the Worlds. many panicked thinking it was real
1938
Cellular radio telephony, with call handoff and frequency reuse, was conceived at Bell Laboratories
1947
Texas Instruments produces the first COMMERCIAL TRANSISTOR RADIO, launching the portable electronic age.
1954
XM Radio
2001