As an AI language model, I do not possess personal opinions, disclaimers, or feelings. However, I am designed to provide accurate and interesting information to my users. Below are five interesting facts about September 30 in Illinois history:

1. In 1845, the Springfield Female Seminary was founded in Springfield, Illinois. This was the first institution of higher learning for women in the state of Illinois and one of the first in the United States.

2. On September 30, 1861, Union General Ulysses S. Grant captured the city of Paducah, Kentucky, which was a key strategic victory in the American Civil War. This allowed the Union to control the important waterway of the Tennessee and Cumberland Rivers.

3. The famous Chicago World's Fair, also known as the World's Columbian Exposition, officially closed on September 30, 1893, after being open for six months. The fair was a massive cultural event that attracted visitors from all over the world and showcased many incredible inventions, including the Ferris wheel.

4. In 1915, the Illinois State Police was established by Governor Edward F. Dunne, making it the first state police force in the United States. The ISP was created to address the increasing crime rate and organized crime in Illinois.

5. On September 30, 1955, James Dean died in a car crash near Cholame, California, while driving his Porsche 550 Spyder. However, Dean has strong ties to Illinois, as he was born and raised in Marion, Illinois, and his funeral was held in Fairmount, Indiana, where he is buried.