268 Gallienus slain Tetricus. 269 Tetricus slain Claudius Gothicus. 270 Claudius Gothicus dies Aurelian. 273 (?) Constantius Chlorus marries Helen, a British lady [V.A. 6] 274 Constantine the Great born at York [V.A. 6] 275 Aurelian slain Tacitus. 276 Tacitus slain Florianus. Florianus slain Probus. 277 Vandal prisoners deported to Britain [V.A. 1] 282 Probus slain Carus. 283 Carus dies Numerian. 284 Numerian dies Carinus. 285 Carinus dies {Diocletian. {Maximian. 286 Carausius, first "Count of the Saxon Shore," becomes Emperor in Britain [V.A. 3] 292 Constantine and Galerius "Caesars" [V.A. 5] 294 Carausius murdered by Allectus [V.A. 4] 296 Constantius slays Allectus and recovers Britain [V.A. 7, 8] Britain divided into four "Diocletian" Provinces [V.A. 9] 303 Tenth Persecution. Martyrdom of St. Alban [V.A. 11] 305 Diocletian and Maximian abdicate {Constantius. [V.A. 12] {Galerius. 306 Constantius dies at York [V.A. 13]. Constantine, Galerius, Maxentius, Licinius, etc., contend Interregnum. for Empire [V.A. 14] 312 Constantine with British Army wins at Milvian Bridge, and embraces Christianity [V.A. 14] Constantine. 314 Council of Arles [V.E. 14] 325 Council of Nicaea [V.B. 1] {Constantine II. 337 Constantine dies {Constantius II. {Constans. 340 Constantine II. dies 343 Constans and Constantius II. visit Britain [V.B. 1] 350 Constans slain. Usurpation of Constantius II. Magnentius in Britain [V.B. 3] 353 Magnentius dies [V.B. 3] 358 Britain under Julian. Exportation of corn [V.B. 4] 360 Council of Ariminum [V.E. 14] 361 Death of Constantius [V.B. 6] Julian. 362 Lupicinus, Legate in Britain, repels first attacks of Picts and Scots [V.B. 5] 363 Julian dies {Valentinian. {Valens. 365 Saxons, Picts, and Scots ravage shores of Britain [V.B. 7] {Valentinian. 366 Gratian associated in Empire {Valens. {Gratian.