In the mid-1990s, the administration required all underclassmen to live on campus in college housing rather than in fraternity or sorority houses, ultimately resulting in the closure of all fraternity houses and the Emerson Literary Society's house in 1995. It created new social spaces for student use, improved funding for on-campus events, and pursued several other social life changes. The new policy was controversial, especially the administration's decision to prohibit the fraternities from using their houses. Thus, the majority of fraternities concluded they had no choice but to sell their houses to the college, though some fraternities refused to sell their houses until well into the next decade. As the college purchased the houses, it has carried out extensive renovations, in order to turn the buildings into dormitories. The college has revoked or suspended the charters of a few fraternities for extreme behavior, as recently as 2015, because of their causing additional controversy among the students and alumni.