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In 1930, at least 30 million homes had a radio.
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In 1931, four young men became singing stars over the radio.
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In 1931, newspaper revenue decreased while the radio revenue increased.
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In 1931, sixteen percent of the world was unemployed and listening to the radio during the Great Depression.
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In 1933, the country elected a new president (FDR) because he spoke of over the radio frequently.
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In 1934, New England began the first local news network for radio.
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In 1934, a network founded radio drama and started it up during the summer.
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In 1934, 60 percent of homes owned at least one radio, and 1.5 million cars had radios.
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In 1937, over 80 percent of the population had at least one radio and millions had radios in their cars.
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In 1937, women were first introduced over the air and were able to do talk shows.
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In 1937, Marconi passed away and several radio channels did a moment of silence in his honor.
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In 1937, the Golden Gate Bridge was built and push button radios were invented. Push button radios were also offered for cars, too.
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In 1941, there was a worldwide variety of music on the radio.
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In 1943, new versions of radio comedy were being played.
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In 1943, many songs about the war were being played.
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In 1943, segregation was a big deal and many African Americans were being heard over the radio.
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In 1943, American Forces Network (AFN) started to broadcast radio to troops.
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In 1943, FM radio was available in many cities which played classical music or programs.
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In 1945, sports were being broadcast over the radio.
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In 1945, the world kept up with World War ll by listening to the radio.