Portal:Illinois

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The flag of Illinois

Illinois (/ˌɪlɪˈnɔɪ/ IL-in-OY) is a state in the Midwestern region of the United States. It borders Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash and Ohio rivers to its south. Of the fifty U.S. states, Illinois has the fifth-largest gross domestic product (GDP), the sixth-largest population, and the 25th-most land area. Its largest urban areas include Chicago and the Metro East of Greater St. Louis, as well as Peoria, Rockford, Champaign–Urbana, and Springfield, the state's capital.

Illinois has a highly diverse economy, with the global city of Chicago in the northeast, major industrial and agricultural hubs in the north and center, and natural resources such as coal, timber, and petroleum in the south. Owing to its central location and favorable geography, the state is a major transportation hub: the Port of Chicago has access to the Atlantic Ocean through the Great Lakes and Saint Lawrence Seaway and to the Gulf of Mexico from the Mississippi River via the Illinois Waterway. Chicago has been the nation's railroad hub since the 1860s, and its O'Hare International Airport has been among the world's busiest airports for decades. Illinois has long been considered a microcosm of the United States and a bellwether in American culture, exemplified by the phrase Will it play in Peoria?.

Present-day Illinois was inhabited by various indigenous cultures for thousands of years, including the advanced civilization centered in the Cahokia region. The French were the first Europeans to arrive, settling near the Mississippi and Illinois River in the 17th century in the region they called Illinois Country, as part of the sprawling colony of New France. Following U.S. independence in 1783, American settlers began arriving from Kentucky via the Ohio River, and the population grew from south to north. Illinois was part of the United States' oldest territory, the Northwest Territory, and in 1818 it achieved statehood. The Erie Canal brought increased commercial activity in the Great Lakes, and the small settlement of Chicago became one of the fastest growing cities in the world, benefiting from its location as one of the few natural harbors in southwestern Lake Michigan. The invention of the self-scouring steel plow by Illinoisan John Deere turned the state's rich prairie into some of the world's most productive and valuable farmland, attracting immigrant farmers from Germany and Sweden. In the mid-19th century, the Illinois and Michigan Canal and a sprawling railroad network greatly facilitated trade, commerce, and settlement, making the state a transportation hub for the nation.

Selected article

A small disc of Am-241 under the microscope.
A small disc of Am-241 under the microscope.

Americium is a radioactive transuranic chemical element with symbol Am and atomic number 95. This member of the actinide series is located in the periodic table under the lanthanide element europium, and thus by analogy was named after the Americas.

Americium was first produced in 1944 by the group of Glenn T. Seaborg from Berkeley, California, at the Metallurgical Laboratory of the University of Chicago, a part of the Manhattan Project. The discovery was kept secret and only released to the public in November 1945. Most americium is produced by uranium or plutonium being bombarded with neutrons in nuclear reactors – one tonne of spent nuclear fuel contains about 100 grams of americium. It is widely used in commercial ionization chamber smoke detectors, as well as in neutron sources and industrial gauges. Several unusual applications, such as nuclear batteries or fuel for space ships with nuclear propulsion, have been proposed for the isotope 242mAm, but they are as yet hindered by the scarcity and high price of this nuclear isomer.

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Selected biography

Geog Solti
Geog Solti

Sir Georg Solti (21 October 1912 – 5 September 1997) was an orchestral and operatic conductor, best known for his appearances with opera companies in Munich, Frankfurt and London, and as a long-serving music director of the Chicago Symphony Orchestra. Born in Budapest, he studied there with Béla Bartók, Leo Weiner and Ernő Dohnányi. His career was interrupted by the rise of the Nazis, and because he was a Jew he fled the increasingly restrictive anti-semitic laws in 1938. After conducting a season of Russian ballet in London at the Royal Opera House he found refuge in Switzerland, where he remained during the Second World War. In 1961 he became musical director of the Covent Garden Opera Company, London. During his ten-year tenure, he introduced changes that raised standards to the highest international levels. He became a British subject in 1972. In 1969 Solti was appointed music director of the Chicago Symphony Orchestra, a post he held for 22 years. He restored the orchestra's reputation after it had been in decline for most of the previous decade. He became the orchestra's music director laureate on his retirement in 1991.

Known in his early years for the intensity of his music making, Solti was widely considered to have mellowed as a conductor in later years. He recorded many works two or three times at various stages of his career, and was a prolific recording artist, making more than 250 recordings, including 45 complete opera sets. The most famous of his recordings is probably Decca's complete set of Wagner's Der Ring des Nibelungen, made between 1958 and 1965. (Read more...)

Did you know...

  • ... that although Olga Hartman believed that her basic research on marine worms had no practical value, it was applied to experimental studies of oysters?
  • ... that Jack Washburn was called "Cinderella Boy" for winning a starring role in his first Broadway show?


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Culture: Chicago Blues FestivalChicago Jazz FestivalChicago Symphony OrchestraCornerstone FestivalDillo DayIllinois Shakespeare FestivalIllinois State FairIllinois' Poets LaureateList of museums in IllinoisLollapaloozaLyric Opera of ChicagoMusicPitchfork Music FestivalRavinia FestivalTaste of Chicago

Education: Higher educationSecondary education

Environment: Ecoregions of IllinoisGeography of IllinoisGeology of IllinoisProtected areas of Illinois

Government: ConstitutionEconomyPoliticsState Capitol

History: ChicagoIlliniwekIllinois CentralIllinois-Wabash CompanyIllinois TerritoryAbraham LincolnBlack Hawk WarCahokia1871 Great Chicago FireMakataimeshekiakiakMiamiMississippian cultureNorthwest TerritoryPotawatomiRoute 66Sauk

People: Governors of IllinoisMayors of ChicagoLongest Serving Mayor in IllinoisOrder of Lincoln Laureates

Sports: Chicago BanditsChicago BearsChicago BullsChicago CubsChicago FireChicago RushChicago SkyChicago White SoxChicago WolvesThe Fighting IlliniIllinois State RedbirdsNorthwestern WildcatsPeoria RivermenRockford IceHogsRockford ThunderSouthern Illinois MinersSouthern Illinois University SalukisChicago Yacht Club Race to MackinacChicago Marathon

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