Ivy League Group Agreement to all intercollegiate sports, effective with the 1955–56 basketball season. This is generally reckoned as the formal formation of the Ivy League. As part of the transition, Brown, the only Ivy that hadn't joined the EIBL, did so for the 1954–55 season. A year later, the Ivy League absorbed the EIBL. The Ivy League claims the EIBL's history as its own. Through the EIBL, it is the oldest basketball conference in Division I. As late as the 1960s many of the Ivy League universities' undergraduate programs remained open only to men, with Cornell the only one to have
Black Ivy League Greenstone, found that between the 1970s and the 1990s, "there is a wage penalty" in attending a HBCU over those attending historically white colleges, "resulting in a 20% decline in the relative wages of HBCU graduates between the two decades." Unlike the Ivy League, the main focus of the Black Ivy League has been on undergraduate education. However, Howard University has several graduate-level professional programs, including a medical school, and Morehouse at one time had a medical school, which has since become independent. There are two other historically black medical schools not affiliated with Black Ivy League-identified colleges, located in