For the radio, the 1930s was a golden age. At the start of the decade 12 million American households owned a radio, and by 1939 this total had exploded to more than 28 million. But why was this ...

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Radios were a pivotal 20th century phenomenon. Developed initially for wireless telegraphy, they carried voice and music after 1920. Although radios faded in home status as television took hold in the ...