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| Alexander Graham Bell's assistant |
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| America's first missionary to a foreign land |
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| Englishman who developed a method of turning iron ore into steel |
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| Orville and Wilbur Wright |
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| built and tested the first airplane |
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| developed the first successful liquid-fueled rocket |
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| first man to use the assembly line to build cars |
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| invented a traffic signal with colored lights |
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| invented the first successful steamboat |
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| invented the mechanical reaper |
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| man who started Tuskegee Institute |
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| scientist who worked with plants |
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| where the first transcontinental railroad was completed |
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