The Columbia University School of Social Work is the graduate school of social work of Columbia University. It is the nation's oldest social work program, with roots extending back to 1898, when the New York Charity Organization Society's first summer course was announced in The New York Times and began awarding the Master of Science (MS) degree in 1940. With an enrollment of over 900, it is one of the largest social work schools in the United States. The combination of its age and size has led to the School becoming a repository for much of the reference literature in the social work field. History In 1898, the Charity Organization Society established the first Summer School in Philanthropic Work at 105 East 22nd Street in New York. Twenty-five men and women attended the first classes. The Summer School continued as the primary training source until 1904. That year, it expanded the coursework as the first full-time course of graduate study at the newly renamed New York School of Philanthropy. The name of the School was changed in 1917 to the New York School of Social Work. The Landmark Bureau of Children's Guidance was established in 1922. In 1931, the School moved into the Russell Sage Building at 122 East 22nd Street. In 1935, the School played a role in writing and implementing the Social Security Act. In 1940, the School was affiliated with Columbia University as one of its graduate schools and began awarding the Master of Science (MS) degree. The first doctoral degree was awarded in 1952, raising the academic level of social work. In 1949, the School moved to the Andrew Carnegie Mansion at 2 East 91st Street, and later to McVickar Hall on 113th Street near Columbia’s Morningside Heights campus. In 1961, the School formed a coalition in support of President John F. Kennedy establishing the Peace Corps. In 1963 the name of the school was formally changed to Columbia University School of Social Work. In 1966, building on its pioneering work with children, the school launched a major longitudinal study of foster children, their families and the agencies serving them. The first fully endowed professorship was set up in 1991, followed by the full endowment of the Kenworthy Chair and nine additional endowed professorships. In 1997, an agreement was concluded with the UN Economic and Social Council (ECOSOC) to provide new program support and a fellowship.