Peoria (/piˈɔːriə/ pee-OR-ee-ə) is the county seat of Peoria County, Illinois, and the largest city on the Illinois River. Established in 1691 by the French explorer Henri de Tonti, Peoria is the oldest European settlement in Illinois, and is named after the Peoria tribe. As of the 2010 census, the city was the seventh-most populated in Illinois (and the third largest outside the Chicago metropolitan area), with a population of 115,007. The Peoria Metropolitan Statistical Area had a population of 373,590 in 2011. Until 2018, Peoria was the global and national headquarters for Caterpillar Inc.,...
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