 Delta Phi Epsilon was founded at Dartmouth College in 1984 as the Epsilon Alpha chapter of the national sorority . The sorority was derecognized by the college in June , 1989 , when it failed to maintain an active membership of at least 35 students . The Dartmouth chapter made an effort to revive itself by separating from the national in 1990 to become Pi Sigma Psi , a local sorority , but dissolved soon thereafter . 
