The Triangular Football League was an American college football conference. Its founding members were Dartmouth, Williams College, and Amherst College. The Triangular Football League was formed in 1892, and was a successor organization to the Northeast Intercollegiate League (1891–1892), the Eastern Intercollegiate Football Association (1887–1890), and the Northern Intercollegiate Football Association (1885–1886). MIT had been a member of the previous iterations as late as 1887, and Wesleyan University became a member of the Triangular Football League by at least 1899.
References
Triangular Football League Wikipedia(Text) CC BY-SA