Pittsburgh Steelers chairman Dan Rooney has died, the team confirmed Thursday. He was 84.

Under Rooney's direction, the Steelers won four championships in six years -- Super Bowls IX, X, XIII and XIV. He also played a large role in the 1974 draft class, considered the greatest class in NFL history, in which the Steelers picked four of five future Hall of Famers -- Lynn Swann, Jack Lambert, John Stallworth and Mike Webster.

Among his lasting accomplishments was his role in the establishment of the Rooney Rule, which was created in 2003 and requires teams to interview minority candidates for head coaching and senior football operation positions. The rule was named in honor of Rooney, who had served as chairman of the league's diversity committee.

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