Other longstanding rivals include Notre Dame and Syracuse; both schools are tied as the third most played rivalry for Pitt. The series with Notre Dame began in 1909, and since that time no more than two consecutive seasons have passed without the teams meeting each other with the exception of the periods from 1913–1929, 1938–1942, and 1979–1981. Notre Dame leads the series 50–21–1. Games between Pitt and the Irish had typically been scheduled annually, however, Notre Dame's agreement to play five ACC opponents each year starting in 2014 precluded annual games, so Pitt and Notre Dame will meet no more than twice during a three-year period. The rivalry with fellow ACC conference member Syracuse began in 1916, and has been played annually since 1955, with the Panthers leading the series 37–31–3. Pitt and Syracuse also shared membership in the Big East Conference from 1991 to 2012 before both schools simultaneously moved to the ACC where they are designated as cross-divisional rivals and are scheduled to meet annually.