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Inca Civilization
The Inca civilization flourished in ancient Peru between c. 1400 and 1533 CE. The Inca Empire eventually extended across western South America from Quito in the north to Santiago in the south. It was the largest empire ever seen...
Definition
Diocletian
Diocletian was Roman emperor from 284 to 305 CE. After the defeat and death of the Roman emperor Philip the Arab in 249 CE, the empire endured over three decades of ineffective rulers. The glory days of Augustus, Vespasian, and Trajan...
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Map of the Parthian (Arsacid) Empire, c. 150 CE - Iran’s Cavalry Empire Between Rome and the Silk Roads
The Parthian, or Arsacid, Empire (c. 247 BCE–224 CE) was an Iranian imperial state that emerged as Seleucid authority weakened in northeastern Iran. Arsaces...
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Map of the Roman Empire under Septimius Severus, 193-211 CE - Civil War, Roman Expansion, and the Rise of the Severans
The reign of Septimius Severus (193–211 CE) marked a turning point in Roman imperial history. Rising to power during the Year of the Five Emperors...
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7 Maps of the Spanish Colonial Empire
In this gallery of seven maps, we examine the vast overseas territories of the Spanish Empire from the late 15th century to the 19th century. The empire reached its height during the Age of Exploration and included...
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Map of the Akkadian Empire at Its Height - Ruling the Four Quarters of the World
The Akkadian Empire (c. 2334–2218 BCE), founded by Sargon of Akkad (reign c. 2334–2279 BCE), is widely regarded as the first territorial empire in recorded history. Emerging from...
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Map of the Bulgarian Empire under Tsar Samuel - Campaigns against Byzantium and the Struggle for the Balkans
On 3 October 2026, Greece is handing over to Bulgaria the remains identified as those of Tsar Samuel (Samuil), ruler of Bulgaria from 997 to 1014. Discovered...
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Ardashir I - Founder of the Sassanid Persian Empire
Ardashir V of Persis | Ardeshir the Unifier | Ardashir I | اردشیر یکم (l. c. 180-241 CE, r. 224-240 CE) A visual representation of Ardeshir I (the Unifier), founder of the Sasanian Empire (Larger Iran...
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Map of the Bulgarian Empire under Krum the Fearsome, 803-814
This map illustrates the reign of Krum the Fearsome (Bulgarian: Крум Страшни), the ruler of Bulgaria from c. 800 to 814. Known for his formidable military campaigns, Krum doubled the size of...
Definition
Khosrow II
Khosrow II (aka Kosrau II, r. 590-628) was the last powerful shahanshah (king of kings) of the Sassanian Empire. Grandson of Kosrau I (r. 531-579) and near-conqueror of the Byzantine Empire in the Byzantine-Sassanian War of 602-628...
