to Sub-Saharan Africa west of the Nile river Roman domination of the northern Mediterranean coasts of Africa began when Carthage was defeated. The Roman Empire in the following century controlled all the coasts from the Nile valley to the
Atlantic Ocean of modern
Morocco. The Roman military presence of North Africa was relatively small if related to other areas of the empire, consisting of about 28,000 troops and auxiliaries in
Numidia and the two
Mauretanian provinces. Starting in the 2nd century CE, these garrisons were manned mostly by local inhabitants, because the area was considered fully pacified and nearly totally
romanised. Aside from Carthage, urbanization in North Africa came in part with the establishment of settlements of veterans under the Roman emperors
Claudius,
Nerva, and
Trajan. In what is now
Algeria, such settlements included
Tipasa, Cuicul or Curculum (modern
Djemila, northeast of
Sétif), Thamugadi (modern
Timgad, southeast of Sétif), and Sitifis (modern
Setif). The prosperity of most towns depended on agriculture. Called the "granary of the empire," North Africa was one of the largest exporters of grain in the empire, which was exported to other provinces, like Italy and Greece. Other crops included fruit, figs, grapes, and beans. By the 2nd century CE, olive oil rivaled cereals as an export item. The beginnings of the decline were less serious in North Africa than elsewhere. There were uprisings, however. In 238 AD, landowners rebelled unsuccessfully against the emperor's fiscal policies. Sporadic tribal revolts in the Mauretanian mountains followed from 253 to 288. The towns also suffered economic difficulties, and building activity almost ceased. The towns of Roman North Africa had a substantial Jewish population. Some Jews had been deported from
Judea or
Palestine in the 1st and 2nd centuries CE for rebelling against Roman rule; others had come earlier with
Punic settlers. In addition, a number of Berber tribes had converted to Judaism.
Christianity Early Christianity arrived in the 2nd century and soon gained converts in the towns and among slaves. More than eighty bishops, some from distant frontier regions of Numidia, attended the Council of
Carthage in 256. By the end of the 4th century, the settled areas had become
Christianized, and some Berber tribes had converted en masse. A division in the church that came to be known as the
Donatist controversy began in 313 among Christians in North Africa. The Donatists stressed the holiness of the church and refused to accept the authority to administer the sacraments of those who had surrendered the scriptures when they were forbidden under the Emperor
Diocletian. The Donatists also opposed the involvement of
Emperor Constantine in church affairs in contrast to the majority of Christians who welcomed official imperial recognition. The occasionally violent controversy has been characterized as a struggle between opponents and supporters of the Roman system. The most articulate North African critic of the Donatist position, which came to be called a heresy, was Augustine, bishop of
Hippo Regius.
Augustine maintained that the unworthiness of a minister did not affect the validity of the sacraments because their true minister was Christ. In his sermons and books Augustine, who is considered a leading exponent of Christian dogma, evolved a theory of the right of orthodox Christian rulers to use force against schismatics and heretics. Although the dispute was resolved by a decision of an imperial commission in Carthage in 411, Donatist communities continued to exist as late as the 6th century.
Devastation and decline In the summer of 365 AD, a massive
tsunami struck North Africa, causing massive damage and thousands of deaths. The cities were devastated and coastal farmlands ruined by seawater. Almost total crop failure precipitated a steep decline in trade. This decline in trade weakened Roman control. Independent kingdoms emerged in mountainous and desert areas, towns were reconquered by Berbers. Then the Vandals took over most of
Africa Proconsularis in the early 5th century and stayed for a hundred years.
Belisarius, general of the
Byzantine emperor Justinian I based in
Constantinople, landed in North Africa in 533 with 16,000 men and within a year destroyed the Vandal kingdom. Many rural areas reverted to Berber rule and
Byzantine North Africa as a whole was lost during the
Muslim conquests. ==See also==