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The horizontal fraction bar was introduced by the Arabs.
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The average office desk has 400 times more bacteria on it than a toilet.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.