<P> The franchise was founded in Decatur , Illinois , in 1919 , and moved to Chicago in 1921 . It is one of only two remaining franchises from the NFL 's founding in 1920 , along with the Arizona Cardinals , which was originally also in Chicago . The team played home games at Wrigley Field on Chicago 's North Side through the 1970 season ; they now play at Soldier Field on the Near South Side , next to Lake Michigan . The Bears have a long - standing rivalry with the Green Bay Packers . </P>
<P> The franchise was founded in Decatur , Illinois , in 1919 , and moved to Chicago in 1921 . It is one of only two remaining franchises from the NFL 's founding in 1920 , along with the Arizona Cardinals , which was originally also in Chicago . The team played home games at Wrigley Field on Chicago 's North Side through the 1970 season ; they now play at Soldier Field on the Near South Side , next to Lake Michigan . The Bears have a long - standing rivalry with the Green Bay Packers . </P>
when did the chicago bears become a team
when did the chicago bears become a team
1919
1919