In 1700s, the deer skin was a common medium of exchange between the trading settlers and the native Red Indians in America. This is how a buck became a slang for a dollar.
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There are 189 people named 'Lol' in the U.S.
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Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
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Colorado switched mile marker "420" to "419.99" to stop people from stealing it.
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No president of the United States was an only child for his parents.
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Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
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During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
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