letter to Probianus, 181; passes judgment on Cæcilianus, 182; change of policy, 183; ignores African Church, 185; letter to the Catholics and his opinion of the Donatists, 187; and Arian controversy, 189, 207-210, 285-297; calls Council of Nicæa, 211; opens the Council, 217-219; and Nicene Creed, 230; celebrates his Vicennalia, 232, 233, 239, 322; farewell speech to Council of Nicæa, 233, 234; letter “To the Churches,” 235; family, 237; mother’s influence upon, 238, 239; and Procession of the Knights, 240; edict to his subjects, 241; turns against Crispus, 242; murder of Crispus, Licinianus, and Fausta, 243-247; repentance, 247, 249; donation of, 248, 249; baptism, 248, 249; builds churches, 249, 251, 318, 319; campaigns against the Goths and Sarmatæ, 252, 253; confession of faith, 254, 255; relations with Persia, 254-256; founder of Constantinople, 257 _ff._; edicts against the Arians, 286; character, 301 _ff._; passion for building, 302, 303; division of the Empire, 307-311; education of his sons, 308; celebrates Tricennalia, 311; fatal malady, 312, 313; death and burial, 256, 313, 314; and religious parties, 316; daily religious life, 317; edict for observance of Lord’s day, 319; prayer, 319; policy toward old religion, 320 _ff._; edict giving religious freedom, 321; Pontifex Maximus, 322 _ff._; and divination, 326; edict to abolish gladiatorial shows, 327; reforms, 330; attitude of subjects to, 331; organisation of Empire, 331; fiscal system of, 339-342 Constantine, son of the Emperor Constantine, 296, 309 Constantinople, foundation of, 257 _ff._; called “New Rome,” 258; and Napoleon, 259; part rebuilt, 266; called Septicollis, 266; dedication, 267; plan and buildings, 269; forum, 269; palaces, 272; aqueducts, 273; Hippodrome, 274, 276; churches, 274-276 Constantinus, son of Constantine, 309, 314 Constantius, son of Constantine, persecution of Christians, 134; birth, 238; appointed Cæsar of Gaul, 242; named consul, 243 Constantius Chlorus, Cæsar, 5; goes to Britain, 6; domain, 8; character, 16, 328; attitude toward Christians, 16, 26; becomes emperor, 40; ancestry, 44; marriage, 44; loyalty, 46; death, 49 Consuls, 334 “Council of the 318,” the, 212 Crispus, son of Constantine, becomes Cæsar, 122; victory over Alemanni, 124, 125; victory over Amandus, 129; heir to throne, 237; victories, 237; and Fausta, 238; Constantine turns against, 242, 243; death, 243 Curia, the, 338 D Dalmatius, 310 Damasus, Pope, 152 Datianus, 29 Decius, Emperor, persecution of the Christians, 13