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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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The horizontal fraction bar was introduced by the Arabs.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.