he was roman emperor from 306-337 ce becoming the first emperor to convert to christianity
Constantine the Great Constantine was the first Roman emperor to convert to Christianity,[notes 1] and he played an influential role in the proclamation of the Edict of Milan in 313, which declared religious tolerance for Christianity in the Roman empire. He called the First Council of Nicaea in 325, at which the Nicene Creed was adopted by Christians. In military matters, the Roman army was reorganised to consist of mobile field units and garrison soldiers capable of countering internal threats and barbarian invasions. Constantine pursued successful campaigns against the tribes on the Roman frontiers—the Franks, the Alamanni, the Goths, and the Sarmatians—even resettling territories abandoned by his predecessors during the Crisis of the Third Century.
Titus Titus (/ˈtaɪtəs/; Latin: Titus Flavius Caesar Vespasianus Augustus;[a] 30 December 39 – 13 September 81 AD) was Roman emperor from 79 to 81. A member of the Flavian dynasty, Titus succeeded his father Vespasian upon his death, thus becoming the first Roman emperor to come to the throne after his own biological father.
Roman Empire Diocletian divided the empire into four regions, each ruled by a separate emperor, the Tetrarchy.[27] Confident that he fixed the disorders that were plaguing Rome, he abdicated along with his co-emperor, and the Tetrarchy soon collapsed. Order was eventually restored by Constantine the Great, who became the first emperor to convert to Christianity, and who established Constantinople as the new capital of the eastern empire. During the decades of the Constantinian and Valentinian dynasties, the empire was divided along an eastâ€“west axis, with dual power centres in Constantinople and Rome. The reign of Julian, who attempted to restore Classical Roman and Hellenistic religion, only briefly interrupted the succession of Christian emperors. Theodosius I, the last emperor to rule over both East and West, died in 395 AD after making Christianity the official religion of the empire.[28]
Constantine the Great and Christianity Constantine's position on the religions traditionally practiced in Rome evolved during his reign. In fact, his coinage and other official motifs, until 325, had affiliated him with the pagan cult of Sol Invictus. At first, Constantine encouraged the construction of new temples[34] and tolerated traditional sacrifices;[11] by the end of his reign, he had begun to order the pillaging and tearing down of Roman temples.[35][36][37]