Galerius
Overview
Galerius was Roman Emperor
Roman Emperor
The Roman emperor was the ruler of the Roman State during the imperial period . The Romans had no single term for the office although at any given time, a given title was associated with the emperor...

 from 305 to 311. During his reign he campaigned, aided by Diocletian
Diocletian
Diocletian |latinized]] upon his accession to Diocletian . c. 22 December 244  – 3 December 311), was a Roman Emperor from 284 to 305....

, against the Sassanid Empire
Sassanid Empire
The Sassanid Empire , known to its inhabitants as Ērānshahr and Ērān in Middle Persian and resulting in the New Persian terms Iranshahr and Iran , was the last pre-Islamic Persian Empire, ruled by the Sasanian Dynasty from 224 to 651...

, sacking their capital Ctesiphon
Ctesiphon
Ctesiphon, the imperial capital of the Parthian Arsacids and of the Persian Sassanids, was one of the great cities of ancient Mesopotamia.The ruins of the city are located on the east bank of the Tigris, across the river from the Hellenistic city of Seleucia...

 in 299. He also campaigned across the Danube
Danube
The Danube is a river in the Central Europe and the Europe's second longest river after the Volga. It is classified as an international waterway....

 against the Carpi
Carpi (people)
The Carpi or Carpiani were an ancient people that resided, between not later than ca. AD 140 and until at least AD 318, in the former Principality of Moldavia ....

, defeating them in 297 and 300. Although he was a staunch opponent of Christianity
Christianity
Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

, Galerius ended the Diocletianic Persecution when he issued an edict of toleration
Edict of Toleration by Galerius
The Edict of Toleration by Galerius was issued in 311 by the Roman Tetrarchy of Galerius, Constantine and Licinius, officially ending the Diocletian persecution of Christianity....

 in 311.
Galerius was born in Serdica
Sofia
Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

, though some modern scholars consider the strategic site where he later built his palace named after his mother – Felix Romuliana
Gamzigrad
Gamzigrad is an archaeological site, spa resort and UNESCO World Heritage Site of Serbia, located south of the Danube river, near the city of Zaječar. It is the location of the ancient Roman complex of palaces and temples Felix Romuliana, built by Emperor Galerius...

 (Gamzigrad
Gamzigrad
Gamzigrad is an archaeological site, spa resort and UNESCO World Heritage Site of Serbia, located south of the Danube river, near the city of Zaječar. It is the location of the ancient Roman complex of palaces and temples Felix Romuliana, built by Emperor Galerius...

) – his birth and funeral place.
 
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