In the late years of the nineteenth century Barnard and Teachers College were formally incorporated as part of Columbia University. The addition of Barnard and Teachers College to the Columbia system figured within a broad plan to revitalize and transform Columbia from a small, provincial college into a prominent “metropolitan university.” The trend in higher education in the post-Civil War years was toward the development of the modern university; and Columbia rapidly moved in that direction under the leadership of Seth Low, who was president of the university from 1890 to 1901, and later under Nicholas Murray Butler, whose administration spanned the years 1901–45. By the early years of the twentieth century, Columbia had become a complex institution, supporting graduate research, professional education, specialized studies in the arts and sciences, and claiming under its auspices a number of affiliated colleges, and educational and cultural agencies.