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marconi sent and recieved first radio signal.
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a vacuum that amplified signals. Lee De Forest credited for inventing the audion tube. reginald fessenden was the original creator
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The first known radio news program was broadcast by station 8MK, the unlicensed predecessor of WWJ (AM) in Detroit, Michigan
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KDKA in Pittsburgh, Pennsylvania, which in October 1920 received its license and went on the air as the first US licensed commercial broadcasting station on November 2, 1920 with the presidential election results as its inaugural show. The host was Frank Conrad.
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The first baseball game ever broadcast on radio was a Pittsburgh Pirates versus Philadelphia Phillies game on August 5, 1921. The game was broadcast by KDKA of Pittsburgh, and the Pirates defeated the Phillies 8-5
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In California, Joseph Franklin Rutherford transmitted his first radio Bible sermon
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1922 WEAF aired a 10 minute for an apartment complex charging $50.
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FRC was established to organize the licensing of transmitters, and assiigning radio station frequencies, call letters, and power limits.
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The album spent ten weeks at #1 on the Billboard Top Pop Albums chart in 1956, the first rock and roll album ever to make it to the top of the charts, and the first million-selling album of that genre.
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Stairway to Heaven was released by Led Zeppelin.
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Bob Marley died
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Harry Caray died
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Sirius Satellite Radio begins service