Sigma Tau Delta is the International English Honor Society. A member of the Association of College Honor Societies, it was founded in 1924 at Dakota Wesleyan University. There are over 470 chapters located in Canada, Europe, the Caribbean, and the United States. An international convention is held annually.
Membership is based on scholarly achievement.
Membership in Sigma Tau Delta is for life. Full-time faculty members who sponsor a chapter are also eligible. Associate membership is available to currently enrolled students, undergraduate or graduate, who have the requisite academic background but who are not majoring or minoring in English. In addition, non-sponsoring faculty members with a degree in English may be associate members. Tau Delta is an outward recognition of personal accomplishment.