 Chi Delta ( " Chi Delt " ) at Dartmouth College was founded as the Gamma Gamma chapter of Delta Delta Delta sorority in 1984 . The house was the first Greek organization to secede from the Co @-@ ed Fraternity Sorority Council in the spring of 2000 , a move that eventually precipitated the dissolution of that organizing body as other Greek organization on campus followed suit . Chi Delta remains a member of the Panhellenic Council , which represents the interests of the sororities on campus . On May 29 , 2015 , the Dartmouth chapter of Delta Delta Delta unanimously voted to disaffiliate from its national organization and become a local sorority . 
