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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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