Back when Harvard didn't admit (many) blacks and women, they also had an anti-Jewish quota. See: http://en.wikipedia.org/wiki/Numerus_clausus#Numerus_clausus...

Edit: Now that I eventually figured out how to get around the paywall (hint: Chrome makes it easier than Firefox, I wonder why), the article mentions this: "The suit compares its current racial admissions to Harvard’s quotas limiting Jewish students in an earlier era. In both cases, Harvard kept out minorities who would have been admitted based on academic merit."