Ecumenical Councils
- The First Council at Nicea, 325
- The First General Council of Constantinople, 381
- The General Council of Ephesus, 431
- The General Council of Chalcedon, 451
- The Second General Council of Constantinople, 553
- The Third General Council of Constantinople, 680-81
- The Second General Council of Nicaea, 787
- The Fourth General Council of Constantinople, 869-70
- The First General Council of the Lateran, 1123
- The Second General Council of the Lateran, 1139
- The Third General Council of the Lateran, 1179
- The Fourth General Council of the Lateran, 1215
- The First General Council of Lyons, 1245
- The Second General Council of Lyons, 1274
- The General Council of Vienne, 1311-12
- The General Council of Constance, 1414-18
- The General Council of Basel-Ferrara-Florence, 1431-45
- The Fifth General Council of the Lateran, 1512-17
- The General Council of Trent, 1545-63
- The First General Council of the Vatican, 1869-70
- The Second General Council of the Vatican, 1962-65