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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According to a 2014 study, 1 in 10 Americans think HTML is a sexually-transmitted disease.
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The first female self-made millionaire in America was a black woman.
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On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
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In the U.S. the typical school year is 180 days long. In China, the typical school year is 251 days.
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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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Chanel Tapper, a student from California, USA, has the world's longest tongue, measuring 9.75 cm (3.8 inches), from tip to top lip!
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