The franchise was founded in Decatur, Illinois, on September 20, 1919,[14][15][16] became professional on September 17, 1920, and moved to Chicago in 1921.[17][18] It is one of two remaining franchises from the NFL founding in 1920, along with the Arizona Cardinals, which began in Chicago. The team played home games at Wrigley Field on Chicago's North Side through the 1970 season; they have played since then at Soldier Field on the Near South Side, adjacent to Lake Michigan.
The team headquarters, Halas Hall, is in the Chicago suburb of Lake Forest, Illinois. The Bears practice at adjoining facilities there during the season, and began hosting training camp at Halas Hall in 2020 after major renovations.
^"Chicago Bears Team Facts". ProFootballHOF.com. NFL Enterprises, LLC. Archived from the original on April 12, 2019. Retrieved February 14, 2023.
^"Brand Guidelines". ChicagoBears.com. Archived from the original on September 26, 2020. Retrieved July 8, 2024.
^"History of the Bears Uniform"(PDF). 2023 Chicago Bears Media Guide(PDF). NFL Enterprises, LLC. Archived(PDF) from the original on July 8, 2024. Retrieved July 8, 2024. In 1935 the Bears introduced an orange jersey with black arm stripes and black helmet and by 1958 were wearing the familiar navy blue with burnt orange.
^Halas, George; Morgan, Gwen; Veysey, Arthur (1979). Halas By Halas. McGraw Hill. pp. 53–54.
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