A week after Northwestern’s Interfraternity Council lifted its 9-week-old social ban on Greek-sponsored parties, University of Chicago administrators announced today that they too would be ending their university’s social ban, which has been in place for the entirety of the school’s 127-year existence. “When we put the social ban in place, we were very concerned about the prevalence of sexual assault, along with race-mixing and Spanish imperialism.” University of Chicago President Robert J. Zimmer said. “Since then, I think we’ve