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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Seven U.S. states are named after sovereigns - four kings and three queens.
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The United States does not have an official language.
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In downtown Churchill, Manitoba, it's illegal to lock your car doors in case someone needs to escape from a polar bear.
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In March, 2014, Colorado sold $19 million dollars worth of Cannabis. $1.9 million went to schools and crime fell by 10%.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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