Saint Augustine, Florida, is the oldest European settlement in North America.
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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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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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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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The United States has paved enough roads to circle the Earth over 150 times.
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The average American spends a third of their overall time online playing games and using social networks.
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According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
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The Canadian province of New Brunswick (which was part of the UK at the time) had a bloodless war with the US state of Maine in 1839
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