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Illinois (/ˌɪlɪˈnɔɪ/ IL-ih-NOY) is a state in the Midwestern United States. It borders on 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 capital city is Springfield in the center of the state, and the state's largest city is Chicago, located in northeastern Illinois.

Present-day Illinois was inhabited by Indigenous cultures for thousands of years. The French were the first Europeans to arrive, settling near the Mississippi and Illinois rivers in the 17th-century Illinois Country, as part of their sprawling colony of New France. A century later, the revolutionary war Illinois campaign prefigured American involvement in the region. Following U.S. independence in 1783, which made the Mississippi River the national boundary, American settlers began arriving from Kentucky via the Ohio River. Illinois was soon 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 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, Sweden and elsewhere.

In the mid-19th century, the Illinois and Michigan Canal and a sprawling railroad network facilitated trade, commerce, and settlement, making the state a transportation hub for the nation, especially in Chicago, which became the world's fastest growing city by the late 19th century. By 1900, the growth of industrial jobs in the northern cities and coal mining in the central and southern areas attracted immigrants from Eastern and Southern Europe. Illinois became one of America's most industrialized states and remains a major manufacturing center. The Great Migration from the South established a large black community, particularly in Chicago, which became a leading cultural, economic, and population center; the Chicago metropolitan area holds about 65% of the state's 12.8 million residents.

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Carya illinoinensis, commonly called the pecan, is a species of hickory native to Mexico and the south central and southeastern United States. The pecan tree is a large deciduous tree, growing to 20–40 m (66–131 ft) in height. A pecan, like the fruit of all other members of the hickory genus, is not truly a nut, but is technically a drupe, a fruit with a single stone or pit surrounded by a husk. The seeds of the pecan are edible with a rich, buttery flavor.

Before European settlement, pecans were widely consumed and traded by Native Americans. They can provide two to five times more calories per unit weight than wild game and require no preparation. As a wild forage, the fruit of the previous growing season is commonly still edible when found on the ground. Thomas Jefferson planted Carya illinoinensis, known as "Illinois nuts", in his nut orchard at Monticello in Virginia. George Washington reported in his journal that Jefferson had given him "Illinois nuts", which he then grew at Mount Vernon. (Read more...)

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Orval Grove
Orval Grove

Orval Leroy Grove (August 29, 1919 – April 20, 1992) was an American pitcher in Major League Baseball who played for ten seasons in the American League with the Chicago White Sox. In 207 career games, Grove pitched 1,176 innings and posted a win–loss record of 63–73, with 66 complete games, 11 shutouts, and a 3.78 earned run average (ERA). The only freshman on the Proviso East High School varsity baseball team, Grove's pitching ability attracted the attention of the White Sox. After signing with the team in 1937, Grove moved between the major leagues and minor leagues for a few seasons until 1943, when he found a solid place in the White Sox's pitching rotation. Grove spent four more full seasons with the White Sox and four more with the Sacramento Solons of the Pacific Coast League. After retirement, he worked with his uncle in a trucking business in Chicago while continuing to pitch at the semi-pro level. (Read more...)

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24 July 2026 – 2026 United States cyclosporiasis outbreak
The U.S. Centers for Disease Control and Prevention (CDC) reports that the ongoing cyclosporiasis outbreak, which is caused by Cyclospora cayetanensis, has spread to an additional four states: Illinois, Kansas, Oklahoma, and Pennsylvania. (CNBC)
21 June 2026 – Tornadoes of 2026
Three people are killed, five others are injured and multiple people are trapped after three tornadoes touch down near Wichita, Kansas; Dix, Illinois; and Newburgh, Indiana, United States. (KSDK) (KSN) (WSIL-TV)

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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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