The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Elongation stage of translation in bacteria
brain development in the human embryo
Human Biology
Time Line of Human History From Upper Paleolithic Period to the Present
The Human Visual Cortex
DNA-sequence alignment of contigs on human chromosome 2