250 AD to 476 AD

250 - 299 AD

Mithraism reaches its height of popularity in the Roman Empire about 250 AD. Formation of the Gallic Empire by Roman military commander Postumus in 259 AD. China is unified under the Jin Dynasty in 265 AD. Roman Emperor Claudius II (Gothicus) defeats the Goths in the Battle of Naissus (today's Niš) in 269 AD. Roman Emperor Aurelian conquers the Palmyrene Empire ruled by Queen Zenobia in 273 AD and the so-called Gallic Empire in 274 AD. Mani, the founder of Manichaeism dies on February 26, 277. Diocletian becomes Roman Emperor on November 20, 284 AD. Tetrarchy in the Roman Empire 293-313 AD.

300 - 349 AD

Beginning of the Migration period about 300 AD. Kama Sutra is composed ca. 300 AD. The Diocletianic Persecutions of Christians 303 AD. Constantine the Great becomes Roman Emperor on July 25, 306 AD. Constantine the Great defeats his rival Maxentius in the Battle of the Milvian Bridge on October 28, 312 AD. Proclamation of religious toleration by the Edict of Milan in 313 AD. Council of Nicaea is held in 325 AD. Division of the Roman Empire between the sons of Constantine the Great - Constans I, Dalmatius and Constantinus II on Constantine's death on May 22, 337 AD. Division of Roman Empire into western and eastern parts between Constans I and Constantinus II after Dalmatius' death in 337 AD.

350 - 399 AD

The Liguge Abbey is established by Saint Martin of Tours in 361 AD. The Huns invade Europe ca. 375 AD. Roman Emperor Valens is killed in the Battle of Adrianople against the Goths on August 9, 378 AD. Second Ecumenical Council is held in 381 AD. The rule of the Northern Wei Dynasty begins in China in 386 AD. Eastern Roman Emperor Theodosius the Great defeats Western Roman Emperor Eugenius in the Battle of the Frigidus on September 6, 394 AD, and reunites the Roman Empire. Permanent division of Roman Empire into western and eastern parts after death of Theodosius the Great on January 17, 395 AD.

400 - 449 AD

The Romans withdrew from Britain in 407 AD. Establishment of the Visigothic Kingdom with capital in Toulouse in 418 AD. Sack of Rome by Visigoths on August 28, 410 AD. Saint Jerome dies on September 30, 420 AD. Establishment of the Vandal Kingdom in North Africa by Genseric in 429 AD. Saint Augustine dies on August 28, 430 AD. Roman general Flavius Aetius destroys the Burgundian Kingdom in 436 AD. Attila the Hun becomes sole ruler ca. 445 AD.

450 - 476 AD

Beginning of the conquest of Britain by Angles, Saxons and Jutes ca. 450 AD. Roman general Flavius Aetius defeats the Huns under the command of Attila the Hun in the Battle of the Catalaunian Plains in 451 AD. Nestorius, Patriarch of Constantinople and founder of Nestorianism dies in 451 AD. Gepids under Ardaric decisively defeat the Huns in the Battle of Nedao in 454 AD. Roman general Flavius Aetius is slain by Western Roman Emperor Valentinian III on September 21, 454 AD. Western Roman Emperor Valentinian III is assassinated on March 16, 455 AD. Sack of Rome by the Vandals under Genseric on June 6, 455 AD. Germanic chieftain Odoacer deposes the last Western Roman Emperor, Romulus Augustulus on August 23, 476 AD.