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Constantine I

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born February 27, after AD 280?, Naissus, Moesia [now Niš, Serbia]
died May 22, 337, Ancyrona, near Nicomedia, Bithynia [now Izmit, Turkey]

Photograph:Constantine I, colossal marble head,   325.
Constantine I, colossal marble head, c. AD 325.
The Granger Collection, New York

byname  Constantine the Great , Latin in full  Flavius Valerius Constantinus  the first Roman emperor to profess Christianity. He not only initiated the evolution of the empire into a Christian state but also provided the impulse for a distinctively Christian culture that prepared the way for the growth of Byzantine and Western medieval…


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More from Britannica on "Constantine I"...
243 Encyclopędia Britannica articles, from the full 32 volume encyclopedia
> Constantine I
the first Roman emperor to profess Christianity. He not only initiated the evolution of the empire into a Christian state but also provided the impulse for a distinctively Christian culture that prepared the way for the growth of Byzantine and Western medieval culture.
> Constantine I
king of Greece from 1913 to 1917 and from 1920 to 1922. His neutralist, but essentially pro-German, attitude during World War I caused the Western Allies and his Greek opponents to depose him in 1917, and, having lent himself to Greece's disastrous Anatolian policy after his restoration, he again lost his throne in 1922.
> Constantine I
king of Scotland or Alba, the united kingdom of the Picts and Scots (862–877), who succeeded his uncle Donald I.
> Constantine VII Porphyrogenitus
Byzantine emperor from 913 to 959. His writings are one of the best sources of information on the Byzantine Empire and neighbouring areas. His De administrando imperio treated the Slavic and Turkic peoples, and the De ceremoniis aulae Byzantinae, his longest book, described the elaborate ceremonies that made the Byzantine emperors priestly symbols of the state.
> Donald I
king of Alba, the united kingdom of the Picts and Scots (858–862), and brother and successor of Kenneth I MacAlpin. Donald established an ancient corpus of laws and rights (known as the laws of Aed, or Aedh) that apparently included the custom of tanistry. According to this custom, the successor of a king was elected during his lifetime from the eldest and worthiest of ...

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12 Student Encyclopedia Britannica articles, specially written for elementary and high school students
Malcolm I
   from the Malcolm, kings of Scotland article
(ruled 943–954). Malcolm I succeeded his second cousin Constantine II, who abdicated to enter a monastery. In 954 Malcolm captured Moray, a kingdom to the north, and killed its king. He also made a pact to assist England against the Scandinavians, but he later turned against his allies and captured territory in northern England. Malcolm was killed while trying to put down ...
Nicholas I
   from the Nicholas, czars of Russia article
(born 1796, ruled 1825–55) was a grandson of Catherine the Great. His father was Paul I. Because he had two older brothers, Alexander and Constantine, it was thought he would never be emperor. Russian history took a suprising turn when Constantine abdicated his right to the throne in 1822. Alexander died in 1825. Nicholas thus succeeded Alexander at a time when ...
History
   from the Istanbul article
Greeks founded the colony of Byzantium in the 7th century BC. The Roman emperor Constantine proclaimed it his capital in AD 330 and renamed it Constantinople. He and his successors built walls, aqueducts, cisterns, and public fountains. For more than 1,000 years Constantinople was the capital of the Eastern Roman Empire. (See also Byzantine Empire; Constantine the Great.)
Unity Shattered After the Fall of Rome
   from the Italy article
After the Roman emperor Constantine moved his capital to Constantinople in AD 330, the Western Roman Empire decayed and was overrun by waves of barbarians (see Goths; Huns; Lombards; Vandals). Political unity was shattered as rival rulers fought over fragments of Italian territory.
History
   from the Cologne article
The area on which Cologne stands was colonized by Roman invaders in about 53 BC. It was declared a Roman colony in AD 50 by Emperor Claudius and named Colonia Claudia Ara Agrippinensium after his wife, who was born there. The colony was later made the headquarters of the governor of Lower Germany. The emperor Constantine the Great built a castle there in 310 and also a ...

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