The loose geography of "Roman Africa" encompasses primarily present-day Tunisia, Algeria, Libya, and northern Morocco.
The Roman Imperial and later the Byzantine presence manifested in a series of evolving but defined administrative provinces.
In the late Republic (starting in the mid-2nd century BC) through the Principate and the Crisis of the Third Century, these were: After Diocletian's formation of the Tetrarchy, the Diocese of Africa was the overarching imperial administration of North Africa, excluding Mauretania Tingitana.
Byzantine North Africa (AD 533 through ca.
698/700) was governed as: North Africa is particularly known for the abundance and quality of its Roman-era mosaics and for its influence on the intellectual development of Christianity in late antiquity through Carthaginian theologians such as Tertullian, Cyprian, and Augustine of Hippo.