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Who was the first Roman Emperor to make Christianity the religion?
Create your account Emperor Theodosius I declared Christianity as the official state religion of thr Roman Empire. This happened in 380 AD. Constantine I was the first… See full answer below.
Who was the last Roman Emperor to rule both East and West?
Theodosius became Emperor in the East in 383 and West in 394. He would be the last Roman Emperor to rule both halves together (with assistance from his sons), though only for four months. Flavius Theodosius Augustus (347-395 A.D.), last emperor to rule over both the Eastern and the Western halves of the Roman Empire
Who was the emperor at the First Council of Constantinople?
In this 9th century Byzantine manuscript illumination, Emperor Theodosius and a crowd of bishops sit on a semicircular bench on either side of an enthroned Gospel Book at the First Council of Constantinople (381 A.D.) Politically, Theodosius was able to forge an alliance with the Visigoth invaders and defeated the Ostrogoths in battle.