Professor W.C. Röntgen Discovers X-Rays
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Chester Carlson Invents Machine To Copy Documents
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Professor Organizes Bus Boycott
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Paine Urges Americans To Declare Independence
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Steam Power Moves Ancient Monument
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Anesthesia Makes Surgery Painless
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Inventors Wage Patent War
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Robert Bruce Claims Crown of Scotland
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Weather Warning May Delay Invasion
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Emperor of Ethiopia Battles Italian Army
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