Changes in Ecclesiastical Jurisdictions in Finland

Date	Change
1164	Diocese of Åbo was established (from Diocese of Uppsala and became suffragan of Uppsala)
1522.07.22	Diocese of Åbo was suppressed
1920.06.08	Apostolic Vicariate of Finland was established (from Metropolitan Archdiocese of Mohilev)
1955.02.25	Apostolic Vicariate of Finland was promoted as Diocese of Helsinki (without ecclesiastical province)
1959.04.17	Apostolic Exarchate of Deutschland und Skandinavien (Ukrainian Rite) was established