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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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There are more bacteria in your mouth than there are people in the world.
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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.