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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.