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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Everyone has one nostril that is larger than the other.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.