The first semi-permanent settlements appeared in Florida around 5000 B.C.
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Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
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The United States has paved enough roads to circle the Earth over 150 times.
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50% of pizzas in America are pepperoni.
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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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A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
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There are six times as many people of Irish descent living in America than in Ireland.
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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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