AUTOR: Roland Meyer AFILIACJA: Universität Regensburg (Niemcy) TYTUŁ: Tagging a historical corpus STRESZCZENIE The task of annotating a historical corpus with morphosyntactic information poses problems which partly overlap with those of synchronic tagging, and partly call for new methods. In this talk I will outline the specific problems involved and explore two approaches, using data from a diachronic corpus of Russian: (i) finite-state morphology and statistical disambiguation (the common approach for synchronic corpora), and (ii) annotation projection from tagged modern translations. A key issue with which both attempts have to cope is the considerable variation in orthography, phonology and morphology we find in historical texts.