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Images: The 1920s - Music, Markets, and Milestones: 75 Years of KOAC Radio - KOAC Records - Special Collections & Archives Research Center, Oregon State University Libraries
Heinz History Center - Did you know that in November 1920, in a shack atop a Westinghouse building in East Pittsburgh, KDKA Radio sent out the world's first commercial radio broadcast? The
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100 years ago, the first commercial radio broadcast announced the results of the 1920 election – politics would never be the same
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