El Dorado (city, United States)
El Dorado (ĕl dərā´də), city (1990 pop. 23,146), seat of Union co., S central Ark; inc. 1845. The discovery of oil in 1921 made it the oil center of the state. The city has oil refineries, chemical plants, and poultry-packing houses, as well as diverse manufactures.
"El Dorado (city, United States)." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 19, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/el-dorado-city-united-states
"El Dorado (city, United States)." The Columbia Encyclopedia, 6th ed.. . Retrieved September 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/el-dorado-city-united-states
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