Piqua (pĭkˈwā) [key], city (1990 pop. 20,612), Miami co., W Ohio, on the Miami River; settled 1797, chartered 1929. It is an industrial city with diverse manufactures, including airplane and automobile parts, steel and iron, paper, aluminum, wood, and metal products. Of special interest is a historical area just north of the city, the site of a number of old Native American villages and of battles during the last conflict of the French and Indian Wars.
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