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  Roman Senate's granting to Octavian the honorific Augustus.
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  Under Emperor Trajan: during his reign the Roman Empire controlled approximately 6.5 million km.
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  In the late 3rd century AD, Diocletian established the practice of dividing authority between four co-emperors
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  Major Battle of Actium took place
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  Octavian the grandnephew and heir of Julius Caesar, had made himself a central military figure during the chaotic period following Caesar's assassination.
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  Julius Ceaser becamce the dictator of Rome
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  The Severan Dynasty, which lasted from 193 until 235, included several increasingly troubled reigns
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  In 27 BC, Octavian offered to transfer control of the state back to the senate.
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  While Judaism was largely accepted, as long as Jews paid the Jewish Tax after 70, there was anti-Judaism in the pre-Christian Roman Empire and there were several Jewish-Roman wars.
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  Augustus was succeeded by his stepson Tiberius, the son of his wife Livia from her first marriage.
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  Christianity emerged in Roman Judea as a Jewish religious sect in the 1st century AD.
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  In 361, after further episodes of civil war, Julian became emperor
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  In 365, Procopius managed to bribe two legions, who then proclaimed him Augustus
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  In 41 Caligula was assassinated, and for two days following his assassination, the senate debated the merits of restoring the republic.
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  The Western Roman Empire collapsed in 476 as Romulus Augustus was forced to abdicate by Odoacer.[