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Did you know?
The horizontal fraction bar was introduced by the Arabs.
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The longest a person has survived after a heart transplant is 24 years.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.