The Association for Computers and the Humanities (ACH) is the primary international professional society for digital humanities. ACH was founded in 1978. According to the official website, the organization "support[s] and disseminate[s] research and cultivate[s] a vibrant professional community through conferences, publications, and outreach activities." ACH is based in the United States, and has an international membership. ACH is a founding member of the Alliance of Digital Humanities Organizations (ADHO), a co-originator of the Text Encoding Initiative, and a co-sponsor of an annual conference.