Chicago's first radio broadcast was in 1921. The medium soared in popularity and Chicago birthed the popular 'soap opera' genre. (Photo by Chicago History Museum) Chicago's First Radio Broadcasst. Photograph. Encyclopædia Britannica Image Quest. Web. 22 Dec 2011.
'Radio Golf', radio reception as sport: the winner is who reaches the highest number of kilometres when trying to receive radio stations located as far away as possible. - Photo, USA, c.1925.
The Roaring Twenties
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Encyclopedia of American History: Volume VII, The Emergence of Modern America, 1900-1928
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