The Steel Curtain was the nickname, first for the defensive line, but soon for the entire defensive unit of the 1970s Pittsburgh Steelers football team of the National Football League (NFL). The line was the backbone of the Steelers dynasty, which won four Super Bowls (IX, X, XIII, and XIV) in six years.
The Steel Curtain was the nickname, first for the defensive line, but soon for the entire defensive unit of the 1970s Pittsburgh Steelers football team of the National Football League (NFL). The line was the backbone of the Steelers dynasty, which won four Super Bowls (IX, X, XIII, and XIV) in six years.
Source: Wikipedia "Steel Curtain" · CC BY-SA 4.0
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