Georgia Institute of Technology
Georgia Tech students hold a heated, long and ongoing rivalry with the University of Georgia, known as Clean, Old-Fashioned Hate. The first known hostilities between the two institutions trace back to 1891. The University of Georgia's literary magazine proclaimed UGA's colors to be "old gold, black, and crimson". Dr. Charles H. Herty, then President of the University of Georgia, felt that old gold was too similar to yellow and that it "symbolized cowardice". After the 1893 football game against Tech, Herty removed old gold as an official color. Tech would first use old gold for their uniforms, as a proverbial slap in the face to UGA, in their first unofficial football game against Auburn in 1891. Georgia Tech's school colors would henceforth be old gold and white.
Eagles–Steelers rivalry
The rivalry is one of the oldest in the NFL, dating back to 1933. The most recent meetings between the teams was in 2016 at Lincoln Financial Field, with the Eagles beating the Steelers 34–3. The rivalry is one of two the Steelers have with the NFC East, the other being with the Dallas Cowboys; by contrast, the Steelers have friendly relations with the New York Giants and the Washington Redskins due to the Rooney family having intermarried with the Mara family and the team having once had scrimmages with the Redskins at each other's training camps, back when the Redskins held training camp in Carlisle, Pennsylvania.