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
The Ivy League (band) departed in January 1966, with Lewis leaving about one year later. The duo then set up a production company called Sunny Records. Tony Burrows and Neil Landon replaced Carter and Lewis and the Ivy League released a couple of albums, "Sounds of the Ivy League" (1967) and "Tomorrow is Another Day" (1969). Several more singles followed, including the minor hits, "Willow Tree" and "My World Fell Down". A cover version of the latter song provided the U.S. band, Sagittarius, with a No.70 chart placing in the "Billboard" Hot 100 in 1967. Success for the Ivy League in the United States