Primarily by fur trappers and Indian traders with the help of Missionaries. Later people began to move west to begin a new adventure in agriculture in the fertile praries.
Illinois State University was founded in 1857.
In 2005, the Eastern tiger salamander was named the official state amphibian of Illinois.
The first US city to be founded was Cahokia which was founded in the year 600. The city was in the state of Illinois.
Springfield, Illinois was founded in 1820.
The State Farm Insurance was founded in 1922. The corporate's headquarters are in Bloomington, Illinois. The State farm insurance is ranked 44th in the 2013 Fortune 500.
Louis Jolliet and Father Marquette arrived in Illinois in 1673, and in 1818, Illinois became the 21st state of the United States.
Northern Illinois University was founded through the creation of a Board of Trustees for the governance of the Northern Illinois State Normal School, as part of the expansion of the normal school program established in 1857 in Normal, Illinois. In July, 1917, the Illinois Senate consolidated the boards of trustees for the five state normal schools into one state Normal School Board (Eastern Illinois State Normal School, Illinois State Normal School, Northern Illinois State Normal School, Southern Illinois State Normal University, and Western Illinois State Normal School). (Wikipedia) For the source and more detailed information concerning your request, click on the related links section (Answers.com) indicated below this answer box.
it was founded in 1673.
Illinois had been established as a territory for Native Americans well before being founded. The first founders of the modern state were Father Marquette and Louis Joliet.
Illinois was founded in 1818 after settlers from Kentucky moved there and managed to get it approved as a state.
State Farm insurance was founded in 1922 by George J. Mecherle. State Farm insurance is headquartered in Bloomington, Illinois.
The state that Northwestern University is located in is Illinois. Northwestern University was founded in 1851 and has two campuses located in Chicago and in the city of Evanston.