Illinois

Illinois is a state located on the widwestern region of the United States of America.

History
During World War II, Captain America toured the nation for the USO to promote War Bonds. Chicago, Illinois was one of the stops on the tour.

In 1945 HYDRA planned to launch a HYDRA Parasit on Chicago.

In 2014, a terrorist cell run by a man named Baker discovered that the Zodiac still existed and stole it from S.H.I.E.L.D. with the intention of launching a terrorist strike at the Willis Tower in Chicago.

Captain America jumped out of the tower's Skydeck without a parachute to safely retrieve the Zodiac, counting on agent Rumlow to stop his fall.