The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Blood is approximately twice as thick as water because of the cells and other components found in it.