3rd-century Chinese Mathematicians
The 3rd century was the period from 201 ( CCI) to 300 ( CCC) Anno Domini (AD) or Common Era (CE) in the Julian calendar.. In this century, the Roman Empire saw a crisis, starting with the assassination of the Roman Emperor Severus Alexander in 235, plunging the empire into a period of economic troubles, barbarian incursions, political upheavals, civil wars, and the split of the Roman Empire through the Gallic Empire in the west and the Palmyrene Empire in the east, which all together threatened to destroy the Roman Empire in its entirety, but the reconquests of the seceded territories by Emperor Aurelian and the stabilization period under Emperor Diocletian due to the administrative strengthening of the empire caused an end to the crisis by 284. This crisis would also mark the beginning of Late Antiquity. In Persia, the Parthian Empire was succeeded by the Sassanid Empire in 224 after Ardashir I defeated and killed Artabanus V during the Battle of Hormozdgan. The Sassanids th ...
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Battle Of Hormozdgan
The Battle of Hormozdgan (also spelled Hormizdagan and Hormozgan) was the climactic battle between the Parthian Empire, Arsacid and the Sasanian Empire, Sasanian dynasties that took place on April 28, 224. The Sasanian victory broke the power of the Parthian dynasty, effectively ending almost five centuries of Parthian rule in Iran, and marking the official start of the Sasanian era. Background Around 208 Vologases VI succeeded his father Vologases V as king of the Arsacid Empire. He ruled as the uncontested king from 208 to 213, but afterwards fell into a dynastic struggle with his brother Artabanus IV, who by 216 was in control of most of the empire, even being acknowledged as the supreme ruler by the Roman Empire. Artabanus IV soon clashed with the Roman emperor Caracalla, whose forces he managed to contain at Battle of Nisibis (217), Nisibis in 217. Peace was made between the two empires the following year, with the Arsacids keeping most of Mesopotamia. However, Artabanus IV ...
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