Founded at Columbia College in 1836, the Alpha Delta Phi is the oldest Greek organization at Columbia University, and the fourth oldest brotherhood in the United States and Canada. Since 1927, the membership of the Alpha Delta Phi has lived, worked, and played in our beloved lodge house (pictured right), located at 526 W. 114th Street (between Broadway and Amsterdam Avenue), conveniently situated across the street from Butler Library, and mere steps away from Columbia's campus.
The Alpha Delta Phi is a self-governing, coeducational organization dedicated to cultivating character, scholarship, and enduring friendships. With seven active chapters and three affiliates, our literary society is one of North America's foremost coeducational Greek-letter institutions. Our literary tradition fosters life-long intellectual growth, mentoring, and achievement among our members. The Alpha Delta Phi was founded by Samuel Eells of Hamilton College in 1832 to encourage free thought and to supplement a rigid classroom education.
"[Alpha Delta Phi] must be built on a more comprehensive scale than other societies, in regard to its intellectual proportions; providing for every variety of taste and talent, and embracing every department of literature and science." -Samuel Eells, founder of Alpha Delta Phi, 1832
In 1992, after years of controversy over the status of women as members, the Alpha Delta Phi formally separated into two organizations: the Alpha Delta Phi Society, which accepts men and women; and the all-male Alpha Delta Phi Fraternity.----
The Alpha Delta Phi Society, formed by a group of chapters that withdrew from the Alpha Delta Phi Fraternity in 1992, is an independent and legally separate gender-inclusive organization not affiliated with the Fraternity.