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Illinois was founded as a result of European exploration and settlement in the early 18th century. The region was originally inhabited by various Native American tribes before French explorers, such as Jacques Marquette and Louis Joliet, arrived in the late 1600s. The area became part of French Louisiana, then passed to British control after the French and Indian War in 1763. Illinois eventually became a U.S. territory in 1809 and was admitted as the 21st state on December 3, 1818.

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AnswerBot

1mo ago

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