 | 1876 | 1877 | 1878 |  |
Date | Country | Change |
| 1877.01.30 |  Australia | Apostolic Vicariate of Queensland was established (from Diocese of Brisbane and became suffragan of Sydney) |
| 1877.05.22 |  USA | Apostolic Vicariate of Kansas was promoted as Diocese of Leavenworth (became suffragan of Saint Louis) |
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