page_title: List of ancient great powers
section_title: Roman Empire
hierarchical_section_title: List of ancient great powers / Ancient Europe / Roman Empire
caption_attribution_description: English: Soldiers of the Roman Army (on manoeuvres in Nashville, Tennessee). (with thanks to Tiberius Ambrosius Silvus of the Legio XXIV)
context_page_description: Recognized great powers came about first in Europe during the post-Napoleonic era. The formalization of the division between small powers and great powers came about with the signing of the Treaty of Chaumont in 1814. A great power is a nation or state that, through its great economic, political and military strength, is able to exert power and influence over not only its own region of the world, but beyond to others.
  The historical terms "Great Nation", a distinguished aggregate of people inhabiting a particular country or territory, and "Great Empire", a considerable group of states or countries under a single supreme authority, are colloquial conversations.
  3000 BC – 476 AD
context_section_description: The Roman Empire is widely known as ancient Europe's largest and most powerful civilization. After the Punic Wars Rome was already one of the biggest empires on the planet but its expansion continued with the invasions of Greece and Asia Minor. By 27 BC Rome had control over half of Europe as well as Northern Africa and large amounts of the Middle East. Rome also had a developed culture, building on the earlier Greek culture. From the time of Augustus to the Fall of the Western Empire, Rome dominated Western Eurasia, comprising the majority of its population.
  Roman expansion began long before the state was changed into an Empire and reached its zenith under emperor Trajan with the conquest of Mesopotamia and Armenia in AD 113. The period of the "Five Good Emperors" saw a successions of peaceful years and the Empire was prosperous. Each emperor of this period was adopted by his predecessor. The Nerva–Antonine dynasty was a dynasty of seven consecutive Roman Emperors who ruled over the Roman Empire from 96 to 192. These Emperors are Nerva, Trajan, Hadrian, Antoninus Pius, Marcus Aurelius, Lucius Verus, and Commodus.
  The last two of the "Five Good Emperors" and Commodus are also called Antonines. After his accession, Nerva, who succeeded Domitian, set a new tone: he restored much confiscated property and involved the Roman Senate in his rule. Starting in 101, Trajan undertook two military campaigns against the gold rich Dacia, which he finally conquered in 106 (see Trajan's Dacian Wars). In 112, Trajan marched on Armenia and annexed it to the Roman Empire. Then he turned south into Parthia, taking several cities before declaring Mesopotamia a new province of the empire, and lamenting that he was too old to follow in the steps of Alexander the Great. During his rule, the Roman Empire expanded to its largest extent, and would never again advance so far to the east. Hadrian's reign was marked by a general lack of major military conflicts, but he had to defend the vast territories that Trajan had acquired.
  At its territorial peak in the year 117, the Roman Empire controlled approximately 5,000,000 km² (1,900,000 sq mi) of land surface. Ancient Rome's influence upon the culture, law, technology, arts, language, religion, government, military, and architecture of Western civilization continues to this day.
caption: Roman army soldiers (historical reenactment)
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