Step 1 : Introduction to the question "A Cheesehead is a fan of which NFL team?"
Cheesehead is a nickname in the United States for a person from Wisconsin or for a fan of the Green Bay Packers NFL football franchise. The use of the term "cheesehead" as a derogatory word for Wisconsinites originated with Illinois football and baseball fans to refer to opposing Wisconsin sports fans. The term, however, was quickly embraced by Wisconsinites and is now a point of pride. The "Cheesehead" trademark is owned by Foamation, Inc. of St. Francis, Wisconsin, which began manufacture of the wearable, foam "Cheesehead" in 1987.