Ever since Religious Studies emerged as a distinct area of inquiry in the 1960s and 1970s, scholars in the field have worried about its academic legitimacy. To put it a bit simplistically, they've worried about what constitutes the difference between teaching religion and teaching about religion.
The Grinnell College Libraries, Black Library was created in response to a series of events and requests in the early 1970s. A celebrarion of the 30 year anniversary of the Black Library was held in 2010