A. D. Jerusalem, against Judaizers.................................. 51

Aries, against the Donatists................................... 314

Nice, First OEcumenical Council............................... 325

Constantinople, Arian........................................ 337

Rome, Athanasian............................................ 342

Sardis, against Arius.......................................... 347

Constantinople, Second OEcumenical............................ 381

Ephesus, Third OEcumenical.................................. 431

Chalcedon, Fourth OEcumenical.............................. 451

Constantinople, Fifth OEcumenical............................. 553

Constantinople, Sixth OEcumenical............................. G81

Nice, Seventh OEcumenical .................... .............. 787

Constantinople, Eighth OEcumenical............................ 870

Rome, First Lateran............................................1123

Rome, Second Lateran.......................................1139

Rome, Third Lateran.........................................1197

Rome, Fourth Lateran........................................1215

Lyons, Emperor Frederick deposed..............................1243

Lyons, Temporary reunion of Greek and Latin Churches.........1274

Vienne, Fifteenth OEcumenical................................1312

Pisa, Popes elected and deposed...............................1400

Constance, Huss condemned to be burnt.......................1414

Basle, Eighteenth OEcumenical................................1431

Rome, Fifth Lateran..................................1512 to 1517

Trent, Nineteenth OEcumenical........................1545 to 1563

Rome, Last OEcumenical.......................................1870