Tappan Square is a public park and National Historic Landmark at the center of Oberlin, Ohio. The park initially opened in 1885, on 13 acres (5.3 ha) of city-owned land at the bequest of Oberlin College benefactor Charles Martin Hall. It was designed by the esteemed duo of Frederick Law Olmsted, Jr. and John Charles Olmsted. The square in Oberlin was named in the 1940s, in honor of Arthur and Lewis Tappan, wealthy merchants of New York City who supported Oberlin College in its early days and who were ardent abolitionists. The square was previously known as College Park or the Campus. Until 1965 it held the Historic Elm, under which John Jay Shipherd and Philo Stewart were said to have knelt and prayed to God and on which spot they decided to found the town. The square held college building