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26 Apr 121 CE
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Birth of Marcus Aurelius
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122 CE
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Construction of Hadrian's Wall
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125 CE
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Hadrian rebuilds the Pantheon
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138 CE
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Death of Lucius Ceionius Commodus, Emperor Hadrian's intended successor
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145 CE
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Marcus Aurelius marries his cousin, Emperor Antoninus' daughter Annia Galeria Faustina.
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147 CE
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The imperium and tribunicia potestas (the primary imperial powers) are conferred upon Marcus Aurelius. He thus becomes a junior co-emperor with his adopted father Emperor Antoninus Pius and is intimately involved with major decisions.
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161 CE
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Roman Syria invaded by the Parthians
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7 Mar 161 CE
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Death of Antoninus Pius
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162 CE
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Romans defeat Parthians; take Syria, Armenia and Mesopotamia
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166 CE
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Roman armies returning from war with the Parthians spread plague across the Roman Empire
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169 CE
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Death of Lucius Verus; Marcus Aurelius becomes sole emperor
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175 CE
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Marcus Aurelius grieves the death of his wife, Empress Faustina the Younger
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177 CE
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Marcus Aurelius proclaims 16-year-old son Commodus joint emperor
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17 Mar 180 CE
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Death of Marcus Aurelius
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200
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Restoration work on the Pantheon under Septimus Severus.
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215
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Restoration work on the Pantheon under Caracalla.
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260
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Shapur I captures Valerian at Edessa
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303
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Diocletian suppresses Christianity
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28 Oct 312
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Battle of Milvian Bridge; Constantine converts to Christianity
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313
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Edict of Milan grants official toleration of Christianity in the Roman Empire
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315
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Construction of the Arch of Constantine
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22 May 337
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Death of Constantine the Great
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21 Jul 365
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Major earthquake followed by tsunami in the Mediterranean
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28 Feb 380
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Nicene Christianity is made the official religion of the Empire
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382
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Emperor Gratian removes Altar of Victory