Roman Empire From Wikipedia, the free encyclopedia

For other uses of "Roman Empire", see Roman Empire (disambiguation).

Not to be confused with Latin Empire or Holy Roman Empire.

Roman Empire

Imperium Romanum (Latin)

Senatus populusque Romanus (SPQR) Senate and People of Rome[n 1]

Βασιλεία Ῥωμαίων (Ancient Greek)

Basileía Rhōmaíōn

←

27 BC – 476 AD (Western)

330–1453 (Eastern) →

Aureus of Augustus, the first Roman Emperor.

The Roman Empire in 117 AD, at its greatest extent.[1]

Capital 27 BC – 293 AD: Rome

293–330: Rome (nominal)

Western Empire only (in consort with

Constantinople) (402–480)

Ravenna

Whole Empire (330–1453)

Constantinople[2]

Languages Latin

Greek

Regional / local languages

Religion Before AD 380: Imperial cult-

driven polytheism

From AD 380: Christianity

Government Mixed, functionallyabsolute

monarchy

Emperor

- 27 BC – AD 14 Augustus (first)

- 98–117 Trajan

- 284–305 Diocletian

- 306–337 Constantine I

- 379–395 Theodosius I

- 474–480 Julius Neposa

- 527–565 Justinian I

- 1449–1453 Constantine XI b

Legislature Senate

Historical era Classical to late antiquity

- Final War of the

Roman Republic 32–30 BC

- Empire established 30–2 BC

- Empire at its

greatest extent AD 117

- Partition (Tetrarchy) 293

- Constantinople

becomes capital 330

- Final East

West divide 395

- Fall of Western

Empire 476

- Fall of

Constantinople 29 May 1453

Area

- 25 BC[3][4] 2,750,000 km²(1,061,781 sq

mi)

- 117 AD [3][5] 5,000,000 km²(1,930,511 sq

mi)

- 390 AD [3] 4,400,000 km²(1,698,849 sq

mi)

Population

- 25 BC[3][4] est. 56,800,000

Density 20.7 /km² (53.5 /sq mi)

Currency Sestertiusc

Today part of 52 countries[show]

a Officially the final emperor of the Western empire.

b Last emperor of the Eastern (Byzantine) empire.

c Abbreviated "HS". Prices and values are usually expressed in

sesterces; see below for currency denominations by period.

The Roman Empire (Latin: Imperium Rōmānum; Classical Latin: [ɪmˈpɛ.ri.ũː roːˈmaː.nũː]) was the post-Republicanperiod of the ancient Roman civilization, characterized by government headed by emperors and large territorial holdings around the Mediterranean Sea in Europe, Africa and Asia. The 500-year-old republic which preceded it was severely destabilized in a series of civil wars and political conflict, during which Julius Caesar was appointed as perpetual dictator and then assassinated in 44 BC. Civil wars and executions continued, culminating in the victory of Octavian, Caesar's adopted son, over Mark Antony and Cleopatra at the Battle of Actium in 31 BC and the annexation of Egypt. Octavian's power was now unassailable and in 27 BC the Roman Senate formally granted him overarching power and the new title Augustus, effectively marking the end of theRoman Republic.

The imperial successor to the Republic endured for some 500 years. The first two centuries of the Empire's existence were a period of unprecedented political stability and prosperity known as the Pax Romana, or "Roman Peace". Following Octavian's victory, the size of the Empire was dramatically increased. After the assassination of Caligula in 41, the Senate briefly considered restoring the republic, but the Praetorian Guardproclaimed Claudius Emperor instead. Under Claudius, the Empire underwent its first major expansion since Augustus. After Claudius' successor, Nero, committed suicide in 68, the Empire suffered a period of brief civil wars, as well as a concurrent major rebellion in Judea, during which four different legionary generals were proclaimed Emperor. Vespasian emerged triumphant in 69, establishing the Flavian dynasty, before being succeeded by his son Titus, who opened the Colosseum shortly after the eruption of Mt. Vesuvius. His short reign was followed by the long reign of his brother Domitian, who was eventually assassinated. The Senate then appointed the first of the Five Good Emperors. The Empire reached its greatest extent under Trajan, the second in this line.

A period of increasing trouble and decline began with the reign of Commodus. Commodus' assassination in 192 triggered the Year of the Five Emperors, of which Septimius Severus emerged victorious. The assassination of Alexander Severus in 235 led to the Crisis of the Third Century in which 26 men were declared Emperor by the Roman Senate over a fifty-year period. It was not until the reign of Diocletian that the Empire was fully stabilized with the introduction of the Tetrarchy, which saw four Emperors rule the Empire at once. This arrangement was ultimately unsuccessful, leading to a civil war that was finally ended by Constantine I, who defeated his rivals and became the sole ruler of the Empire. Constantine subsequently shifted the capital of the east to Byzantium, which was renamed Constantinople in his honor. It remained the capital of the eastuntil its demise in 1453. Constantine also adopted Christianity which later became the official state religion of the Empire. This eastern part of the empire (known later as the Byzantine Empire) remained one of the leading powers in the world alongside its arch-rival the Sassanid Persian Empire, which had

inherited a centuries-oldRoman-Persian conflict from its predecessor the Parthians.[6][7][8] Following the death of Theodosius I, the last Emperor to rule a united Empire, the dominion of the Empire was gradually eroded by abuses of power, civil wars, barbarian migrations and invasions, military reforms and economic depression. The Sack of Rome in 410 by the Visigoths and again in 455 by the Vandals accelerated the Western Empire's decay, while the deposition of the Emperor Romulus Augustulus in 476 by Odoacer is generally accepted to mark the end of the Empire in the west. However, with Romulus Augustulus technically being a usurper, the Western part of the empire only truly legally ceased to exist upon the death of the true Emperor Julius Nepos in 480. The Eastern Roman Empire endured for another thousand years, eventually falling to the Ottoman Turks in 1453.

The Roman Empire was among the most powerful economic, cultural, political and military forces in the world of its time. It was the largest empire of the classical antiquity period, and one of the largest empires in world history. At its height under Trajan, it covered 5 million square kilometers[3][5] and held sway over some 70 million people, at that time, 21% of the world's entire population. The longevity and vast extent of the Empire ensured the lasting influence of Latin and Greek language, culture, religion, inventions, architecture, philosophy, law and forms of government on the Empire's descendants. Throughout the European medieval period, attempts were even made to establish successors to the Roman Empire, including the Crusader state, the Empire of Romania and the Holy Roman Empire. By means of European expansionism through theSpanish, French, Portuguese, Dutch, Italian, German, British and Belgian Empires, Roman and Greek culture was spread on a worldwide scale, playing a significant role in the development of the modern world.