Date | From | To |
unknown | | | Archeparchy of Tyr (Maronite), Lebanon
| Erected |
unknown | Archdiocese of Cranganore (Angamala), India
| Suppressed | Vicariate Apostolic of Verapoly, India
| Territory Added |
unknown | Vicariate Apostolic of Hukwang, Shansi [Shanxi], and Shensi [Shaanxi], China
| Split | Vicariate Apostolic of Houkouang, China
Vicariate Apostolic of Shansi {Scian-Si} (Chan-Si), China
| Split |
29 Jan | Diocese of Quito, Ecuador
| Territory Lost | Diocese of Guayaquil, Ecuador
| Erected |
22 Jun | | | Missionaries of the Sacred Hearts of Jesus and Mary
| Decretum Laudis |
10 Aug | Diocese of Islas Canarias {Canary Islands}, Spain
| Territory Lost | Diocese of Alger, Algeria
| Erected |
10 Aug | Titular See of Icosium
| Suppressed |
16 Aug | Diocese of Peking [Beijing], China
| Territory Lost | Vicariate Apostolic of Liaotung, China
| Erected |
16 Aug | Vicariate Apostolic of Fukien, Chekiang, and Kiangsi, China
| Split | Vicariate Apostolic of Chekiang {Ce-Kiam} and Kiangsi, China
Vicariate Apostolic of Fo-Kien, China
| Split |
17 Sep | | | Patriarchal Exarchate of Iraq (Melkite Greek)
| Erected |
27 Sep | | | Clerics of Saint Viator
| Approbation |
24 Oct | | | Missionaries of St. Francis de Sales d’Annecy
| Founded |