The university has competed in two College World Series, in 1957 and 2002, and has won five conference championships. In addition to its baseball team, Notre Dame also has a softball team that has appeared in one NCAA Tournament game (2001). Notre Dame's baseball program was established in 1887. The Irish are members of the Atlantic Coast Conference (ACC), which they joined in 2005 after spending most of their history as independents. They have made the NCAA Division I Baseball Championship tournament each year since 1990. Currently, the Irish play their home games at Louis E. Dierberg School of Architecture & Design on campus in South Bend, Indiana. The stadium is named for Dr. Louis E. Dierberg, a former chairman of the board who donated $5 million for construction of the ballpark. It is here that the Notre Dame baseball team has achieved national fame as one of the best programs in college baseball. After playing in only six games in 1957, due to the sport being banned by the NCAA until 1965, Notre Dame did not return to the College World Series until eight years later in 1975. Since then, the school has returned to the event every year except 1977, 1983, 1993, and 2002.