Changes in Ecclesiastical Jurisdictions in Tonga

Date	Change
1842.08.23	Apostolic Vicariate of Central Oceania was established (from Apostolic Vicariate of Western Oceania)
1937.04.13	Apostolic Vicariate of Central Oceania was renamed as Apostolic Vicariate of Tonga Islands
1957.03.22	Apostolic Vicariate of Tonga Islands was renamed as Apostolic Vicariate of Tonga Islands and Niue
1966.06.21	Apostolic Vicariate of Tonga Islands and Niue was promoted as Diocese of Tonga (lost territory to Diocese of Rarotonga and without ecclesiastical province)
1972.05.13	Diocese of Tonga lost territory to Diocese of Rarotonga