Imperial Rome
A period of unrest and civil wars in the 1st century bc marked the transition of Rome from a republic to an empire. This period encompassed the career of Julius Caesar, who eventually took full power over Rome as its dictator. After his assassination in 44 bc, the triumvirate of Mark Antony, Lepidus, and Octavian, Caesar’s nephew, ruled. It was not long before Octavian went to war against Antony in northern Africa, and after his victory at Actium (31 bc) he was crowned Rome’s first emperor, Augustus. His reign, from 27 bc to ad 14, was distinguished by stability and peace.
Augustus established a form of government known as a principate, which combined some elements from the republic with the traditional powers of a monarchy. The Senate still functioned, though Augustus, as princeps, or first citizen, remained in control of the government. Under Augustus, Rome began to prosper once again, and the emperor came to be looked upon as a god. Thereafter, all good emperors were worshiped as gods after death. Among the beloved rulers of Rome were Trajan (reigned 98–117), Hadrian (117–138), Antoninus Pius (138–161), and Marcus Aurelius (161–180). Decadent, cruel men also rose to power: Caligula (37–41) and Nero (54–68) were so loathed that their reigns were struck from the official Roman records.
It was during the rule of Tiberius (14–37) that Jesus Christ was crucified. Thereafter, Christians were tolerated at best—but often tortured or killed—until the reign of Constantine I (312–337). In 313 an edict of toleration for all religions was issued, and from about 320 Christianity was favoured by the Roman state rather than persecuted by it. But the empire was dying. The last of Constantine’s line, Theodosius I (379–395), was the last emperor to rule over a unified Roman Empire. The Western Empire, suffering from repeated invasions and the flight of the peasants into the cities, had grown weak compared with the East, where spices and other exports virtually guaranteed wealth and stability. When Theodosius died, in 395, Rome split into Eastern and Western empires.
The West was severely shaken in 410,Visigoths, a wandering nation of Germanic peoples from the northeast. The fall of Rome was completed in 476, when the German chieftain Odoacer deposed the last Roman emperor of the West, Romulus Augustulus. The East, always richer and stronger, continued as the Byzantine Empire through the European Middle Ages.
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