Grammaticalization in the North

Östen Dahl is Emeritus Professor of General Linguistics at the University of Stockholm, Sweden. In recent years, his research has mainly been typologically oriented with a strong interest in diachronic approaches to grammar, in particular areas such as tense and aspect, negation, and definiteness marking. His publications include the monographs Tense and Aspect Systems (1985) and The growth and maintenance of linguistic complexity (2004) and the edited volumes Tense and Aspect in the Languages of Europe (2000) and The Circum-Baltic Languages - Typology and Contact (2 vols, 2002, co-edited with Maria Koptjevskaja Tamm). Together with Jens Allwood and Lars-Gunnar Andersson he published the textbook Logic in Linguistics (1977). He has also written several textbooks in Swedish.