Welcome to the Illinois Alumni Association of Alpha Delta Phi! Alpha Delta Phi was established at Illinois in 1912 as a social and literary fraternity. Founded upon the principles of bettering men morally, socially, and intellectually, Alpha Delta Phi seeks to foster a true brotherhood and create bonds that will last well beyond one’s time at the university.  Illini Alpha Delts have a long history of excellence and leadership both on-campus and after graduation.