Aurora
[key]. 1 City (2020 pop. 386,261), Adams and Arapahoe counties, N central
Colo., a growing suburb on the east side of Denver; inc. 1903. Founded during the silver boom
of the 1890s, it is now a business and technical center and Colorado's third largest city.
Manufactures includes furniture, aircraft fittings, electrical equipment, precision
measurement instruments, magnesium products, computer software, and paper. Tourism and
construction are also important. The Univ. of Colorado medical campus and Buckley Air Force
Base are there. 2 City (2020 pop. 180,542), Kane co., NE Ill., on the Fox River;
inc. 1837. It has large railroad yards and a variety of manufactures, including paper and
plastic products, rods and bearings, controls (thermostats), foods, and consumer goods. It was
one of the first cities to use electricity for street lighting (1881). It is the seat of
Aurora Univ. and of a notable historical museum. A riverboat casino opened in the city in
1993.
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