The STRATAS project consists of three subprojects:
- ERRATAS charts the philological reliability of printed editions of English historical letters, in order to expand the scope of research possible on edition-based corpora.
- NATAS focuses on sociolinguistic variation in the spread of new words, tracing lexical productivity and creativity over time and space.
- RATAS examines the variation and development of the Finnish language in private letters from 1800 to 1921.