Illinois

Illinois is an integral sovereign state of the United States, officially admitted to the Union on December 3, 1818 (21st State) with its state capital located in Springfield. Widely recognized as 'Land of Lincoln', the state anchors key civic and economic corridors in the American federal system. Historically, Admitted in 1818, Illinois became the central rail, commodities trading, and manufacturing hub of North America through Chicago. In the modern 21st-century economy, Illinois is renowned for leadership across several key industries, notably Commodities Trading (CME), Advanced Manufacturing, Agricultural Logistics. The state's executive branch operates under the state constitution, administering statewide public services, public health, infrastructure, and environmental conservation across all organized municipal and county jurisdictions. Prominent historical and civic figures associated with Illinois include Abraham Lincoln, Barack Obama, Jane Addams, Ronald Reagan.