Commercial radio in the United States recently celebrated its 100th birthday, and the nation’s top-reaching medium is still going strong. On November 2nd 1920, KDKA in Pittsburgh began broadcasting on Election Night – using the power of an emerging technology to bring voters results of the Harding-Cox presidential race hours before newspapers could even begin to print. KDKA’s success inspired business owners around the country, and by 1924 there were 600 radio stations operating inside the United States.

Sam Davis