162 The Parthian war.

  169 The war with the Marcomanni.

  180 {Death of Marcus Aurelius. 
       {Accession of Commodus.

  192 {Commodus murdered by Marcia and Laetus. 
       {Assassination of Pertinax.

  200 {Roman empire offered for sale. 
       {Severus subdues the Parthians.

  211 Death of Severus at York.  Accession of Caracalla and Geta.

  217 Assassination of Caracalla.

  218 Accession of Heliogabalus.

  222 {His miserable death. 
       {Accession of Alexander Severus.

  235 Death of Alexander.  Maximin elected emperor.

  236 Assassination of Maximin.

  238 Accession of Gordian.

  244 His murder by Philip.

  248 Philip killed by his soldiers:  succeeded by Decius.

  251 Decius slain in an ambuscade:  succeeded by Gallus.

  254 Death of Gallus:  a disputed succession.

  270 Accession of Aurelian.

  275 Brief reign of Tacitus.

  282 Assassination of the emperor Probus.

  284 Accession of Dioclesian.

  304 The reign of Constantius and Galerius.

  312 Victory of Constantino over Maxentius.

  319 Favour showed to the Christians.

324 Defeat of Licinius.

325 Legal establishment of Christianity.

328 The seat of government removed from Rome to
Byzantium, which city from thenceforward takes
the name of Constantinople, from the
emperor Constantine.

337 {Death of Constantine, and division of
the empire among his sons. 
{Destruction of the Flavian Family.

338 War between Constantius and Sapor.

340 Constantine the younger defeated and slain by his
brother Constans.

350 Constans killed by Magnentius.

351 Magnentius totally defeated at the fatal battle of Mursa.

354 Gallas put to death by Constantius.

360 The civil war between Constantius and Julian
prevented by the death of the former.

362 Julian’s attempt to rebuild the temple of Jerusalem defeated.

363 Death of Julian in the Persian war.  Brief reign of Jovian.

364 The empire divided between Valenlinian and Valens.

376 {The Goths permitted to settle in Thrace. 
{First appearance of the Huns in Europe.

  378 The emperor Valens defeated by the Goths at Adrianople.

  379 Theodosius becomes emperor of the East.

  388 The usurper Maximus defeated and slain.

  392 Reunion of the Eastern and Western empires, under Theodosius.

  395 Death of Theodosius, and final separation of the
        Eastern and Western empires.

  398 Revolt of Gildo in Africa.

  405 Stilicho obtains two victories over the Goths.