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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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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Thyroid conditions may make getting pregnant impossible.
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