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Who Was Malcolm X?
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How Does an X-Ray Work?
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What Is an X-ray Fish?
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Who Invented Escalators?
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Who Invented the Automobile?
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Who Was the Iceman?
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Who Invented Social Media?
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Who Invented Paper?
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Who Was Stan Lee?
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Who Was Sigmund Freud?
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Who Was Winston Churchill?
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Who Wrote The Nutcracker?
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Who was Jesse James?
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Who Invented the Jukebox?
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Who Invented Gears?