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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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The average office desk has 400 times more bacteria on it than a toilet.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.