The range or burnt orange color of the Bears is actually Pantone 1665, this and more Bear's lore and trivia including the historic rivalry with the Green Bay Packers can be found on the Wikipedia page for the Chicago Bears at Chicago Bears

Also see History of the Chicago Bears

1 Overview
2 Early years: The formation of the league and Bear domination (1920-1946)
2.1 The Decatur Staleys
2.2 First years in Chicago
2.3 The thirties
2.4 Dynasty: Monsters of the Midway
3 Middle Years: The Rough Years (1947-1981)
3.1 The decline from the top
3.2 One more championship for Halas
3.3 After AFL-NFL merger
3.4 Building for a championship
4 The Ditka era: Bears renaissance (1982-1992)
4.1 The 85 Bears
4.2 Post-Super Bowl years
5 The Wannstedt and Jauron years (1993-2003)
5.1 Dave Wannstedt
5.2 Dick Jauron
6 The Lovie Smith era: Bears look towards a better future (2004-present)
6.1 The New Monsters of the Midway: 2004-Present