The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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There are 20 feet of blood vessels in each square inch of human skin.
Painting of a Colonial American boy holding a pet squirrel.
By distancing themselves from the social reformers, early American sociologists ignored female ...
Great Serpent Mound, Adams County, Ohio, Hopewell culture.