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Flavius Valerius Constantinus ( 272– May 22, 337), commonly known as Constantine I or Constantine the Great, was proclaimed Augustus by his troops on July 25, 306 and ruled an ever-growing portion of the Roman Empire to his death. Constantine is famed for his refounding of Byzantium as "New Rome," which was always called "Constantine's City"— Constantinople. With the " Edict of Milan" in 313, Constantine and his co-Emperor removed all onus from Christianity. By taking the personal step of convoking the Council of Nicaea (325) Constantine began the Roman Empire's unofficial sponsoring of Christianity, which was a major factor in that religion's spread. His reputation as the "first Christian Emperor" was promulgated by Lactantius and Eusebius and gained ground in the succeeding generations. 1 Early life
He was born at Naissus in Upper Dacia to Constantius I Chlorus and an innkeeper's daughter, Helena. Constantine was well educated and served at the court of DiocletianGaius Aurelius Valerius Diocletian ( 245- 313), born Diocles was Roman Emperor from November 20, 284 to May 1, 305. An Illyrian of low birth, Diocles rose through the ranks to the consulship. He was chosen by the Army on November 20, 284 to replace Numeri in NicomediaNicomedes I of Bithynia founded the city of Nicomedia (modern Ismid), at the head of the Gulf of Astacus (which opens on the Propontis), in 264 BC The city has ever since been one of the chief towns in this part of Asia Minor. It was the metropolis of Bit as a kind of hostage after the appointment of his father Constantius, a general, as one of the two CaesariCaesar (p. Caesares is a title of imperial character. It derives from the cognomen of Gaius Iulius Caesar ("Julius Caesar"), the Roman dictator who was famously murdered on the Ides of March, 44 BC. The change from being a familial name to an imperial tit (at that time a junior emperor), in the TetrarchyThe Tetrarchy ( Greek: "leadership of four"; aka the Latin Quadrumvirate "government by four men") was a system of government created in 293 AD by the Roman Emperor Diocletian in order to solve serious military and economic problems in the Roman Empire. in 293Events March 1 Diocletian and Maximian appoint Constantius Chlorus and Galerius as Caesars. This is considered the beginning of the Tetrarchy. Probus succeeds Rufinus as Patriarch of Constantinople Sassanid Shah Bahram III succeeds Bahram II. Sassanid Sha. In 305Events May 1 Diocletian and Maximian, emperors of Rome, retire from office. Constantius Chlorus and Galerius declared Augusti; Flavius Valerius Severus and Maximinus Daia appointed Caesars. The Arch of Galerius is built. Births Deaths Hierocles, proconsul, the Augustus, Maximian, abdicated, and Constantius succeeded to the position. However, he died in 306. Constantine managed to be at his deathbed in Eburacum ( York), where troops loyal to his father's memory proclaimed him Emperor. For the next 18 years, he fought a series of battles and wars that left him first as emperor of the west, and then as supreme ruler of the Roman Empire.
Bronze statue of Constantine I outside York Minster, near where he was acclaimed Emperor in 306
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