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Roman Empire
Definitionby Joshua J. Mark

Roman Empire

The Roman Empire, at its height (c. 117 CE), was the most extensive political and social structure in western civilization. By 285 CE the empire had grown too vast to be ruled from the central government at Rome and so was divided by Emperor...
Western Roman Empire
Definitionby Joshua J. Mark

Western Roman Empire

The Western Roman Empire is the modern-day term for the western half of the Roman Empire after it was divided in two by the emperor Diocletian (r. 284-305 CE) in c. 285/286 CE. The Romans themselves did not use this term. At its height...
The Extent of the Roman Empire
Articleby Donald L. Wasson

The Extent of the Roman Empire

Time has seen the rise and fall of a number of great empires - the Babylonian, the Assyrian, the Egyptian, and lastly, the Persian.  Regardless of the size or skill of their army or the capabilities of their leaders, all of these empires...
Roman Warfare
Definitionby Mark Cartwright

Roman Warfare

Over many centuries and across many territories the Romans were able to win an astonishing number of military victories and their success was due to several important factors. Italy was a peninsula not easily attacked, there was a huge pool...
Empire of Nicaea
Definitionby Michael Goodyear

Empire of Nicaea

The Empire of Nicaea was a successor state to the Byzantine Empire, or rather a Byzantine Empire in exile lasting from 1204 to 1261 CE. The Empire of Nicaea was founded in the aftermath of the sacking of Constantinople during the Fourth Crusade...
Fall of the Western Roman Empire
Articleby Donald L. Wasson

Fall of the Western Roman Empire

To many historians, the fall of the Western Roman Empire in the 5th century CE has always been viewed as the end of the ancient world and the onset of the Middle Ages, often improperly called the Dark Ages, despite Petrarch's assertion. Since...
Byzantine Empire
Definitionby Mark Cartwright

Byzantine Empire

The Byzantine Empire, often called the Eastern Roman Empire or simply Byzantium, existed from 330 to 1453 CE. With its capital founded at Constantinople by Constantine I (r. 306-337 CE), the Empire varied in size over the centuries, at one...
Ancient Persia
Definitionby Joshua J. Mark

Ancient Persia

Persia (roughly modern-day Iran) is among the oldest inhabited regions in the world. Archaeological sites in the country have established human habitation dating back 100,000 years to the Paleolithic Age with semi-permanent settlements (most...
Assyria
Definitionby Joshua J. Mark

Assyria

Assyria was the region located in the ancient Near East which, under the Neo-Assyrian Empire, reached from Mesopotamia (modern-day Iraq) through Asia Minor (modern Turkey) and down through Egypt. The empire began modestly at the city of Ashur...
Roman Architecture
Definitionby Mark Cartwright

Roman Architecture

Roman architecture continued the legacy left by the earlier architects of the Greek world, and the Roman respect for this tradition and their particular reverence for the established architectural orders, especially the Corinthian, is evident...