In 1931, the women's dormitory opened—the first on-campus student residence built since the university's founding. In 1937, ground was broken on commencement day for Cowles Library, now the university's primary library. In 1939, a new men's dormitory was completed, which included a student union, dubbed "The Kennel". In 1963, Kirk Residence Hall opened, then Meredith Hall opened, in 1965, opening the door for the College of Liberal Arts and the School of Journalism. During the height of nationwide student protests in 1970–culminating in the Student Strike of 1970–a bomb exploded inside Harvey Ingham Hall. No one was injured, but windows were shattered in nearby Meredith, Fitch and Herriott Halls. Ingham was decimated, but repaired. The largest building on campus, the Harmon Fine Arts Center, opened in 1972. The Olmsted Center, Drake's student union building, opened in 1974.