Changes in Ecclesiastical Jurisdictions in Mongolia

Date	Change
1922.03.14	Mission sui juris of Outer Mongolia 外蒙 was established (from Apostolic Vicariate of Central Mongolia 中蒙古)
1924	Mission sui juris of Outer Mongolia 外蒙 was renamed as Mission sui juris of Urga 庫倫
2002.04.30	Mission sui juris of Urga 庫倫 was promoted as Apostolic Prefecture of Ulaanbaatar