 Delta Sigma Theta is an historically African @-@ American sorority at Dartmouth College that was founded in 1982 as the Che @-@ <unk> Interest Group . At the time , the college had imposed a moratorium on the founding on new sororities , but when the moratorium was lifted , the group was recognized by the college as a sorority in the fall of 1984 . The women contacted the Delta Sigma Theta national sorority and were granted a charter as the Pi Theta chapter in the spring of 1985 . Delta Sigma Theta provided an extensive array of public service through the Five @-@ Point Thrust program . Until the chapter 's dissolution , the sisters of Delta Sigma Theta had cosponsored the Step Show , an annual cultural dance performance , with the brothers of Alpha Phi Alpha . The sorority had occupied dedicated College @-@ owned apartment housing until June , 2004 , when all but one member of the Dartmouth chapter graduated . An attempt was made to recruit new members in the summer , and it succeeded , but not for long , as the chapter currently has no members at Dartmouth . 
