Upton Sinclair's book The Jungle resulted in the creation of the 1906 Meat Inspection Act and the Pure Food and Drug Act.
Chicago Bruisers was created in 1987.
The Earl of Chicago was created in 1940.
Hilton Chicago was created in 1927.
Chicago Sparta was created in 1917.
Chicago Hounds was created in 2006.
Duke of Chicago was created in 1949.
Chicago Throwbacks was created in 2007.
Chicago Soldiers was created in 2004.
Chicago Blitz was created in 1983.
Chicago Wolves was created in 1994.
Chicago Bulls was created in 1966.
Chicago Ballet was created in 1910.