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The average adult has about 21 square feet of skin.
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The horizontal fraction bar was introduced by the Arabs.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.