<P> The Pittsburgh Steelers of the National Football League were founded in 1933 . Over the course of the team's history, the team has had several logos while wearing virtually the same uniforms over the years, with subtle changes made to give the uniforms an updated look . The team colors, uniforms, and logo are often ranked as being among the best in the NFL . </P> <P> The Steelers have used black and gold as their colors since the club's inception, the lone exception being the 1943 season when they merged with the Philadelphia Eagles and formed the "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 . </P> <P> The Steelers have had several logos in the early part of their history, among them including the crest of Pittsburgh, a football with Pittsburgh's then - smoggy skyline, as well as a construction worker hanging onto a chain holding a pennant . Another logo showed the worker punting a football on a steel beam . It is rumored that mascot Steely McBeam was based on the latter logo . </P>

What do the colors of the pittsburgh steelers mean
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