| Year | From | To | ||
|---|---|---|---|---|
| 1788 | Diocese of Ljubljana (Laybach; Laibach), Slovenia | Elevated | Archdiocese of Ljubljana, Slovenia | Elevated |
| 1833 | Diocese of Cincinnati, Ohio, USA | Territory Lost | Diocese of Detroit, Michigan, USA (Michigan, Wisconsin, Minnesota, and the Dakotas east of the Mississippi River) | Erected |
| 1854 | Vicariate Apostolic of Bombay, India | Territory Lost | Vicariate Apostolic of Poona, India | Erected |
| 1869 | Missionaries of the Sacred Heart of Jesus | Decretum Laudis | ||
| 1911 | Society of the Divine Savior | Approbation | ||
| 1912 | Diocese of Omaha, Nebraska, USA (Keyapaha, Rock, Garfield, Valley, Sherman, Buffalo, Cheyenne, Kimball, Banner, Scotts Bluffs, Sioux, Barnes, Box Butte, Morrill, Garden, Sheridan, Cherry, Grani > Hooker, Thomas, Me Pherson, Logan, Custer, Blaine, Loup, and Brown; and part of Bawson, ...) | Territory Lost | Diocese of Kearney, Nebraska, USA | Erected |
| 1921 | Delegation to Australia (Marianne, Caroline, and Marshall Islands) | Territory Lost | Delegation to Japan | Territory Added |
| 1922 | Vicariate Apostolic of Northern Kansu {Kansu Settentrionale}, China
Vicariate Apostolic of Southern Kansu {Kansu Meridionale}, China | Territory Lost | Vicariate Apostolic of Western Kansu {Kansu Occidentale}, China (Chinese Turkestan, Ngān-su-tao, Kaiė-leang-tao, Sining-tao, Lanchan-tao, Kukunoor, and the Mongolian territory of Alachan)
Vicariate Apostolic of Eastern Kansu {Kansu Orientale}, China (Wei-tchoan-tao and King-yuen-tao) | Erected |
| 1951 | Prefecture Apostolic of Ambanja, Madagascar | Elevated | Vicariate Apostolic of Ambanja, Madagascar | Elevated |
| 1951 | Mission "Sui Iuris" of Gambia | Elevated | Prefecture Apostolic of Bathurst in Gambia | Elevated |
| 1951 | Vicariate Apostolic of Isole della Piccola Sonda, Indonesia (Manggarai) | Territory Lost | Vicariate Apostolic of Ruteng, Indonesia | Erected |
| 1951 | Vicariate Apostolic of Northern Katanga {Katanga Settentrionale}, Congo (Dem. Rep.) | Name Changed | Vicariate Apostolic of Kongolo, Congo (Dem. Rep.) | Name Changed |
| 1951 | Vicariate Apostolic of Atambua, Indonesia (Pantar and Alor islands)
Vicariate Apostolic of Isole della Piccola Sonda, Indonesia (Larantukan) | Territory Lost | Vicariate Apostolic of Larantuka, Indonesia | Erected |
| 1951 | Vicariate Apostolic of Isole della Piccola Sonda, Indonesia (Ngada, Ende, and Maumere along with Sumba and Sumbawa islands) | Name Changed | Vicariate Apostolic of Endeh, Indonesia | Name Changed |
| 1951 | Vicariate Apostolic of Lwangwa, Zambia | Name Changed | Vicariate Apostolic of Abercorn, Zambia | Name Changed |
| 1967 | Apostolic Exarchate of England and Wales {Inghilterra e Galles} (Ukrainian), Great Britain (Added Scotland) | Territory Added | ||
| 1969 | Nunciature to Ethiopia (to Nunciature) | Elevated | ||
| 1971 | Diocese of Basel e Lugano, Switzerland | Split | Diocese of Basel {Bâle, Basilea}, Switzerland
Diocese of Lugano, Switzerland (Ticino) | Split |
| 1984 | Diocese of Agaņa, Guam, Pacific (Oceania) | Elevated | Archdiocese of Agaņa, Guam, Pacific (Oceania) | Elevated |
| 1984 | Diocese of Carolines-Marshalls, Federated States of Micronesia, Pacific (Oceania) (Suva) | Metropolitan Changed | ||
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