Chester Carlson Invents Machine To Copy Documents
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Professor W.C. Röntgen Discovers X-Rays
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Ferry Boatman Challenges Steamboat Monopoly
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Dictionary Project Falls Behind Schedule
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Stage Actor Charlie Chaplin Tries Making Movies
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Lindbergh Takes Off On Transatlantic Flight
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Charles Babbage Invents Mechanical Calculator
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Earth May Revolve Around Sun
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Churchill Expects Trouble from Nazis
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Emperor of Ethiopia Battles Italian Army
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