Why is Illinois a nickname?

Related questions

1. How much does it cost per credit hour at Illinois State University?
2. Has anyone gotten a 36 on the ACT?
3. What are people from Chicago called?
4. Is Illinois French?
5. What city is in every state in the US?
6. Is 1180 a good SAT score?
7. Is Illinois State University a Division 1 school?
8. How much is a credit hour at Western Illinois University?
9. Is the University of Illinois prestigious?
10. How much is Illinois State per year?

Tags

1. #endangered
2. #north
3. #earth
4. #american
5. #illinois
6. #state
7. #prairie
8. #nickname
9. #ecosystems