Background
He is a grandson of the scholar Viljo Tarkiainen and his wife, writer Maria Jotuni.
He is a grandson of the scholar Viljo Tarkiainen and his wife, writer Maria Jotuni.
He finished his career as archivist in Helsinki as chief of the National Archives of Finland 1996-2003. Tarkiainen became a Doctor of Philosophy in 1974 with a dissertation on the view of Russia in Sweden during the early great power era.
Tarkiainen has had a career in the world of archives both in Finland and Sweden. From 1971 he was employed in the Swedish National Archives in Stockholm. He is a specialist in medieval history, and has formed the conception of the Finnish reformer Mikael Agricola.
Amongst his most important works are a history of Finnish migration to Sweden, Finnarnas historia i Sverige 1-2 (1990-1993), and, which concerns the central issues of Finland"s history, with special focus on the relations between Finnish and Swedish language, economy, settlement, church organisation, administration, and cultural forms.
Tarkiainen has also written a biography of Paavo Haavikko, modernisternas furste (1997).