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
Ivy League was formally designated as "Ivy Day" in 1874. Ivy planting ceremonies are reported for Yale, Simmons, Bryn Mawr and many others. Princeton's "Ivy Club" was founded in 1879. The first usage of "Ivy" in reference to a group of colleges is from sportswriter Stanley Woodward (1895–1965). The first known instance of the term "Ivy League" being used appeared in "The Christian Science Monitor" on February 7, 1935. Several sportswriters and other journalists used the term shortly later to refer to the older colleges, those along the northeastern seaboard of the United States, chiefly the nine institutions with origins dating from