Although enrollment was slow during the 1870s, the fledgling college built momentum under the leadership of President Henry Hill Goodell. In the 1880s, Goodell implemented an expansion plan, adding the College Drill Hall in 1883 (the first gymnasium), the Old Chapel Library in 1885 (one of the oldest extant buildings on campus and an important symbol of the University), and the East and West Experiment Stations in 1886 and 1890. The Campus Pond, now the central focus of the University Campus, was created in 1893 by damming a small brook.