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technology
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1920 Americans tune in, KDKA airs the first commercial radio broadcast in the country, November 2, 1920 1923 Frigidaire, a division of a huge company General Motors, revolutionized US kitchens. The new invention had a separate cabinet for the icebox, complete with machinery to keep it cool. The refrigerator was small, neat, and convenient. It costs $714 1922 Hollywood in Technicolor 1922 black and white movies got color added to them. The remake of Madama Butterfly called the Toll of the Sea. 1927 Iron Lung helped patients paralyzed from polio to breathe.
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Title: technology
Words: 435 Rating: None Pages: 1.7 submitted by: hilltop
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