The Acceptance of Christianity

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The turmoil of the third century seemed to some emperors, including Diocletian, to be the punishment of the gods. Diocletian stepped up persecution of Christians who would not sacrifice to Rome’s traditional deities, portraying them as disloyal to the empire in an attempt to wipe out the faith. These persecutions lasted only a few years, however. Increasing numbers of Romans, including members of prominent families, were converting to Christianity, and many who followed traditional Roman religions no longer saw Christianity as un-Roman (see Chapter 6). Constantine reversed Diocletian’s policy and instead ordered toleration of all religions in the Edict of Milan, issued in 313. Whether Constantine was himself a Christian by this point is hotly debated. His later biographer, the Christian bishop Eusebius, reported that he had been converted on a battlefield in 312 after seeing a vision, and other sources attribute his conversion to his Christian mother, Helena. On the other hand, he continued to worship the sun-god, and in 321 proclaimed that Sunday, “the Day of the Sun,” would be the official day of rest. He was baptized only shortly before he died, although this was not uncommon for high officials. Whatever his personal beliefs at different stages of his life, there is no debate that he recognized the growing numbers of Christians in the empire and financially supported the church. He freed the clergy from imperial taxation and endowed the building of Christian churches. One of his gifts — the Lateran Palace in Rome — remained the official residence of the popes until the fourteenth century. He allowed others to make gifts to the church as well, decreeing in 321, “Every man, when dying, shall have the right to bequeath as much of his property as he desires to the holy and venerable Catholic Church. And such wills are not to be broken.”1 In return for his support, Constantine expected the assistance of church officials in maintaining order. Helped in part by its favored position in the empire, Christianity slowly became the leading religion (Map 7.2).

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Figure 7.2: MAP 7.2 The Spread of Christianity, to 600 Originating in Judaea, the southern part of modern Israel and Jordan, Christianity first spread throughout the Roman world and then beyond it in all directions.

Christians disagreed with one another about many issues, which led to schisms (SKIH-zuhms), denunciations, and sometimes violence. In the fourth and fifth centuries disputes arose over the nature of Christ. For example, Arianism (AI-ree-uh-nih-zuhm), developed by Arius (ca. 250–336), a priest of Alexandria, held that Jesus was created by the will of God the Father and thus was not co-eternal with him. Arian Christians reasoned that Jesus the Son must be inferior to God the Father because the Father was incapable of suffering and did not die. Arianism enjoyed such popularity and provoked such controversy that Constantine, who declared that “internal strife within the Church of God is far more evil and dangerous than any kind of war and conflict,” interceded. In 325 he summoned church leaders to a council in Nicaea (nigh-SEE-uh) in Asia Minor and presided over it personally, referring to himself as “your fellow servant of our common Lord and Savior.”2 The council produced the Nicene (nigh-SEEN) Creed, which defined the position that Christ is “eternally begotten of the Father” and of the same substance as the Father. Arius and those who refused to accept Nicene Christianity were banished. Their interpretation of the nature of Christ was declared a heresy, that is, a belief that contradicted the interpretation the church leaders declared was correct, which was termed orthodoxy. These actions did not end Arianism, however. Several later emperors were Arian Christian, and Arian missionaries converted many barbarian tribes, who were attracted by the idea that Jesus was God’s first-in-command, which fit well with their own warrior hierarchies and was less complicated than the idea of two persons with one substance. The Nicene Creed says little specifically about the Holy Spirit, but in the following centuries the idea that the Father, Son, and Holy Spirit are “one substance in three persons” — the Trinity — became a central doctrine in Christianity, though again there were those who disagreed. Disputes about the nature of Christ also continued, with factions establishing themselves as separate Christian groups. The Nestorians, for example, regarded the divine and human natures in Jesus as distinct from one another, whereas the orthodox opinion was that they were united. The Nestorians split from the rest of the church in the fifth century after their position was outlawed, and settled in Persia. Nestorian Christian missionaries later founded churches in Central Asia, India, and China.

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Religious and secular authorities tried in various ways to control this diversity as well as promote Christianity. In 380 the emperor Theodosius (thee-uh-DOH-shee-uhs) made Nicene Christianity the official religion of the empire. Theodosius stripped Roman pagan temples of statues, made the practice of the old Roman state religion a treasonable offense, and persecuted Christians who dissented from orthodox doctrine. Most significant, he allowed the church to establish its own courts and to use its own body of law, called canon law. The church courts, not the Roman government, had jurisdiction over the clergy and ecclesiastical disputes. At the death of Theodosius, the Christian Church was considerably independent of the Roman state. The foundation for later growth in church power had been laid.

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Sarcophagus of Helena This marble sarcophagus was made for Helena, the mother of Emperor Constantine, at her death. Its detailed carvings show victorious Roman horsemen and barbarian prisoners. Helena became a Christian before her son did and may have influenced his conversion. She was sent by Constantine on a journey to bring sacred relics from Jerusalem to Constantinople as part of his efforts to promote Christianity in the empire.
(Museo Pio Clementino, Vatican Museums and Galleries, Vatican State/© Vanni Archive/Art Resource, NY)

Later emperors continued the pattern of active involvement in church affairs. They appointed the highest officials of the church hierarchy; the emperors or their representatives presided at ecumenical councils; and the emperors controlled some of the material resources of the church — land, rents, and dependent peasantry.