Arab-Berber of the Arab conquest of North Africa, and the intermarriage between the Arabian and Persian people who immigrated to those regions and local mainly Roman Africans and other Berber people; in addition, Banu Hilal and Sulaym Arab tribes originating in the Arabian Peninsula invaded the region and intermarried with the local rural mainly Berber populations, and were a major factor in the linguistic, cultural and ethnic Arabization of the Maghreb. Alongside Berber speakers, arabized Berbers form the core of the native populations of the Maghreb, namely Algeria, Libya, Morocco and Tunisia. Arab-Berbers primarily speak variants of Maghrebi Arabic, also known
Names of the Berber people and English when spelled "Berber". The term appeared first in the 4th century in the religious conflicts between Saint Augustine, a Numidian Berber-Roman bishop of the Catholic faith, and the Berber Donatists of the Donatism faith who were allies of the Barbarian Vandals. The Vandals migrated from Iberia (modern Spain and Portugal) where they were assailed by the Gauls allied to the Romans, and settled west of the Roman city of Carthage (in modern Tunisia) in the highlands (in modern Algeria). Derived terms include the toponym Barbary and the animals Barb horse and Barbary duck. The Greek term "βάρβαρος /