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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Everyone has one nostril that is larger than the other.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.