Roman Empire

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Roman Empire
mperium Romanum
Flag of the Roman Empire v2.png
Flag of the Roman Empire
Middle East
State Existed31 BC-476 AD
State TypeEmpire
Elective Monarchy
Head of StateRoman Emperor
GovernmentFederal Republic
Head of GovernmentPrinceps Senatus
LegislatureSenate of the Roman Empire
Major CitiesAlexandria, Antioch, Carthage, Ephesus, Jerusalem, Londinium
(25 BC)
Area5,000,000 km2 (1,900,000 sq mi)
Max Extent 117 AD
Preceded ByRoman Republic
Succeeded ByByzantine Empire

The Roman Empire also known as Imperial Rome was one of the largest empires of the ancient world. Its capital was Rome, and its empire was based in the Mediterranean. The Empire dates from 31 BC, when Octavian became the Emperor Augustus, till it fell in 476 AD. [1]


Map of the Roman Empire at maximum extent in 117 AD

The history of the Roman Empire can be divided into three distinct periods: The Kingdom of Rome (625-510 BC), Roman Republic (510-31 BC), and Imperial Rome (31 BC – AD 476).[2]

Kingdom Period

Rome was founded around 625 BC in the areas of ancient Italy known as Etruria and Latium. It is thought that the city-state of Rome was initially formed by Latium villagers joining together with settlers from the surrounding hills in response to an Etruscan invasion. It is unclear whether they came together in defense or as a result of being brought under Etruscan rule. Archaeological evidence indicates that a great deal of change and unification took place around 600 BC which likely led to the establishment of Rome as a true city.[3]

The first period in Roman history is known as the Kingdom of Rome, and it lasted from Rome’s founding until 510 BC. During this brief time Rome, led by no fewer than six kings, advanced both militaristically and economically with increases in physical boundaries, military might, and production and trade of goods including oil lamps. Politically, this period saw the early formation of the Roman constitution. The end of the Period of Kings came with the decline of Etruscan power, thus ushering in Rome’s Republican Period.[4]

Republican Period

Rome entered its second period as the Roman Republic in 510 BC. No longer ruled by kings, the Romans established a new form of government whereby the upper classes ruled, namely the senators and the equestrians, or knights. However, a dictator could be nominated in times of crisis. In 451 BC, the Romans established the “Twelve Tables,” a standardized code of laws meant for public, private, and political matters. Rome continued to expand through the Republican Period and gained control over the entire Italian peninsula by 338 BC. It was the Punic Wars from 264-146 BC, along with some conflicts with Greece, that allowed Rome to take control of Carthage and Corinth and thus become the dominant maritime power in the Mediterranean.[5]

Soon after, Rome’s political atmosphere pushed the Republic into a period of chaos and civil war. This led to the election of a dictator, L. Cornelius Sulla, who served from 82-80 BC. Following Sulla’s resignation in 79 BC, the Republic returned to a state of unrest. While Rome continued to be governed as a Republic for another 50 years, the shift to Imperialism began to materialize in 60 BC when Julius Caesar rose to power. By 51 BC, Julius Caesar had conquered Celtic Gaul and, for the first time, Rome’s borders had spread beyond the Mediterranean region. Although the Senate was still Rome’s governing body, its power was weakening. Julius Caesar was assassinated in 44 BC and replaced by his heir, Gaius Julius Caesar Octavianus (Octavian) who ruled alongside Mark Antony. In 31 BC Rome overtook Egypt which resulted in the death of Mark Antony and left Octavian as the unchallenged ruler of Rome. Octavian assumed the title of Augustus and thus became the first emperor of Rome.[6]

Imperial Period

Rome’s third period known as the Roman Empire or Imperial Period was its last, beginning with the rise of Rome’s first emperor in 31 BC and lasting until the fall of Rome in AD 476. During this period, Rome saw several decades of peace, prosperity, and expansion. By AD 117, the Roman Empire had reached its maximum extant, spanning three continents including Asia Minor, northern Africa, and most of Europe. In AD 286 the Roman Empire was split into eastern and western empires, each ruled by its own emperor. The western empire suffered several Gothic invasions and, in AD 455, was sacked by Vandals. Rome continued to decline after that until AD 476 when the western Roman Empire came to an end. The eastern Roman Empire, more commonly known as the Byzantine Empire, survived until the 15th century AD. It fell when Turks took control of its capital city, Constantinople (modern day Istanbul in Turkey) in AD 1453.[7]

The Roman Empire was one of the largest empires of the ancient world. Its capital was Rome, and its empire was based around the Mediterranean Sea. Many modern lands today were once part of the Roman Empire, for example Britain (England & Wales) (not Scotland), Spain, Portugal, Gaul (France), Italy, Greece , Turkey , Germany , Egypt the Levant, Crimea , Switzerland , and the north coast of Africa. The main language of the Roman Empire was Latin ; Greek was an important secondary language. The western part of the Roman Empire continued for about 500 years, and the eastern part, with Greece and Anatolia , continued for about a thousand years more. The eastern part was called the Byzantine Empire, its capital being Constantinople.[8]

Associated Pages


  1. Kelly, Christopher (2007). The Roman Empire: A Very Short Introduction. Oxford University Press. ISBN 978-0-19-280391-7.
  2. The Roman Empire: A Brief History, Milwaukee Public Museum. Milwaukee, WI. USA.
  3. Milwaukee Public Museum.
  4. Milwaukee Public Museum.
  5. Milwaukee Public Museum.
  6. Milwaukee Public Museum.
  7. Milwaukee Public Museum.
  8. Milwaukee Public Museum.