‘TEI’ is short for ‘Text Encoding Initiative’. The TEI is an international organization founded in 1987 to develop guidelines for encoding machine-readable texts in the humanities and social sciences. ‘TEI’ is also used to refer to the TEI Guidelines themselves, and to the set of schemas they describe. The term is sometimes also used to refer to the TEI Consortium (TEI-C), which was established in 2001 to provide ongoing support for further development of the guidelines.
The TEI Guidelines define an encoding language that is intended for use in encoding scholarly resources. The TEI Guidelines require ongoing revision to remain current and to serve their intended purpose. Specific versions of the Guidelines are published and remain stable (with changes only as needed to fix errors). The current version is P5, released in November 2007; it makes significant changes and improvements over the previous version, P4, which was released in 2000. Support for P4 continues, but it is no longer being developed.
Since 2001, the TEI is organized as a member-funded consortium.
The TEI community is broad-ranging and international in scope. Many participants are located at academic institutions such as universities and research libraries. They may be involved in digital library programs, scholarly text encoding projects, computing support units, academic departments, independent research projects, and many other kinds of groups. Some participants are affiliated with standards bodies, funding agencies, governmental organizations, or companies, and some are simply interested in text encoding.

(Source: TEI FAQ.)

Our corpus follows the Text Encoding Initiative recommendations.

We use TEI