What Do You Really Know About The Pittsburgh Steelers ?

I've been a fan of the Pittsburgh Steelers since I moved from Harrisburg, PA to the Steel City in 1969. Before that I was a Philadelphia Eagles fan. The Steelers after winning Super Bowl XL will be writing more history for the fans to talk about. I know a lot of things about the Steelers, but sometimes a trivia question comes along that I just don't know the answer. Everyone knows that Steelers announcer Myron Cope invented the "terrible towel", but you may not know what is the only number retired by the Steelers and who wore it. See if you know the answer to these facts about the Steelers. That's Pittsburgh Steelers news.