The Women's History Research Center Library permanently closed on September 30, 1974. Known as the Women's History Library, it served as the only international archive of the contemporary women's movement since 1968. The Library contained both movement and non-movement information on women in a variety of forms: newsclippings, journals, autobiographies, biographies, diaries, pamphlets, women's studies course outlines, newsletters, newspapers, and magazines. Two collections of great importance were the women's serials (The International Women's History Periodical Archive) and the 2,000 topical files (The Topical Research Library). These collections were recently given away or sold to offset debts. They were transferred to, respectively, Northwestern University and the Contemporary History Archive at the University of Wyoming.