The history of Illinois may be defined by several broad historical periods, namely, the pre-Columbian period, the era of European exploration and colonization...

The history of Nauvoo, Illinois, starts with the Sauk and Meskwaki tribes who frequented the area, on a bend of the Mississippi River in Hancock County...

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...

The history of Peoria, Illinois began when French explorers constructed Fort Crevecoeur in 1680. The County of Peoria was organized in 1825, the town in...

Southern Illinois is a region of the U.S. state of Illinois comprising the southern third of the state, principally south of Interstate 70. Part of downstate...

the U.S. state of Illinois existed for more than a century. Illinois did not become a state until 1818, but earlier regional systems of government had...

governor of Illinois is the head of government of the U.S. state of Illinois. The governor is the head of the executive branch of Illinois's state government...

Corruption in Illinois has been a problem from the earliest history of the state. Electoral fraud in Illinois pre-dates the territory's admission to the...

The Illinois Confederation, also referred to as the Illiniwek or Illini, were made up of 12 to 13 tribes who lived in the Mississippi River Valley. Eventually...

The Illinois Country (French: Pays des Illinois [pɛ.i dez‿i.ji.nwa]; lit. '"land of the Illinois (plural)"', i.e. the Illinois people) (Spanish: País de...

The U.S. state of Illinois has an active LGBT history, centered on its largest city Chicago, where by the 1920s a gay village had emerged in the Old Town...

small city in Hancock County, Illinois, United States, on the Mississippi River near Fort Madison, Iowa. The population of Nauvoo was 950 at the 2020 census...

Springfield is the capital city of the U.S. state of Illinois and the county seat of Sangamon County. The city's population was 114,394 at the 2020 census...

location. Had the Illinois Central Railroad managed to lay down their tracks through Midlothian in the 1850s and 1860s, the history of the Village would...

village in Randolph County, Illinois. Having been inhabited by indigenous peoples, it was settled by France as part of the Illinois Country. It was named for...

The history of the Jews in Illinois dates back to 1793, when John Hays, the region's first postmaster, settled in Cahokia from his native New York. The...

The University of Illinois Urbana-Champaign (UIUC, U of I, Illinois, or University of Illinois) is a public land-grant research university in the Champaign–Urbana...

Southern Illinois University Edwardsville. To the north, Alton is known for its abolitionist and American Civil War-era history. It is also the home of the...

Illinois County, Virginia, was a political and geographic region, part of the British Province of Quebec, claimed during the American Revolutionary War...

The U.S. state of Illinois first required its residents to register their motor vehicles in 1907. Registrants provided their own license plates for display...

The Territory of Illinois was an organized incorporated territory of the United States that existed from March 1, 1809, until December 3, 1818, when the...

The Illinois and Michigan Canal connected the Great Lakes to the Mississippi River and the Gulf of Mexico. In Illinois, it ran 96 miles (154 km) from the...

village in St. Clair County, Illinois, United States, founded as a colonial French mission in 1689. Located on the east side of the Mississippi River in the...

Christopher is a city in Franklin County, Illinois, United States. The population was 2,697 at the time of the 2020 census. Christopher was founded in...

Company v. Illinois, 118 U.S. 557 (1886), also known as the Wabash Case, was a Supreme Court decision that severely limited the rights of states to control...

located in the U.S. state of Illinois with a population of 52,974 at the 2020 census, the county is located 98 miles southeast of St. Louis. Its county seat...

of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois...

of Illinois. According to the 2020 census, it had a population of 13,877. Its county seat is Carmi. It is located in the southern portion of Illinois...

animals and plants of Illinois and the Illinois Natural History Survey's website. "Illinois Herpetology Species List". Illinois Natural History Survey. Retrieved...

county in the northern part of the U.S. state of Illinois. According to the 2020 United States Census, it had a population of 51,788. Its county seat is...