Logos and uniforms of the Pittsburgh Steelers "Steagles"; the team's colors at that time were green and white as a result of wearing Eagles uniforms. These are the colors of the city's official flag which are the colors of the city's namesake Sir William Pitt. The colors black and gold are also representative of the two ingredients to create steel, coal and iron ore. Originally, the team wore gold colored helmets and black jerseys. Unique to Pittsburgh, the Steelers' black and gold colors are now shared by all major professional teams in the city, including the Pittsburgh Pirates in baseball and the Pittsburgh Penguins in ice hockey.
Ice hockey in the United States U.S. Amateur Hockey League then became a member of the International Ice Hockey Federation in 1904. There were five teams from the United States and Ontario that formed the International Ice Hockey Federation. This league only lasted three seasons but it was the first professional ice hockey league that the United States participated in. Meanwhile, teams in western Canada formed the Pacific Coast Hockey Association in 1911. This league created new designs and rules that helped ice hockey evolve into the game it is today. Some of these new innovations that were created were blue lines that were painted under