1. In 1934, notorious gangster John Dillinger was killed by FBI agents outside of the Biograph Theater in Chicago. Dillinger had been on the run for several months and was considered one of the most dangerous criminals of his time.

2. In 1955, the first McDonald's franchise opened in Des Plaines, Illinois. It was the ninth location overall for the fast food chain, which has since become one of the most well-known brands in the world.

3. In 1964, the Chicago Freedom Movement organized a massive rally at Soldier Field in Chicago. The event was led by Reverend Martin Luther King Jr. and drew thousands of people in support of civil rights and desegregation.

4. In 1992, Chicago experienced its worst heat wave on record, with temperatures soaring above 100 degrees for several consecutive days. It is estimated that over 700 people died as a result of the heat wave, making it one of the deadliest weather events in the city's history.

5. In 2010, Navy Pier in Chicago celebrated its 95th anniversary. The iconic attraction, which first opened in 1916 as a shipping and recreational facility, has since evolved into one of the most popular tourist destinations in Illinois.