TEI
TEI, the Text Encoding Initiative, was founded in 1987 to develop guidelines for encoding machine-readable texts of interest to the humanities and social sciences. The Text Encoding Initiative (TEI) is a text-centric community of practice in the academic field of digital humanities, operating continuously since the 1980s. The community currently runs a mailing list, meetings and conference series, and maintains an eponymous technical standard, a journal, a wiki, a GitHub repository and a toolchain. The TEI Guidelines, which collectively define an XML format, are the defining output of the community of practice. The format differs from other well-known open formats for text (such as HTML and OpenDocument) in that it’s primarily semantic rather than presentational.