Berber languages suggests that the C-Group population — which, along with the Kerma culture, inhabited the Nile valley immediately before the arrival of the first Nubian speakers — spoke Afro-Asiatic languages. Roger Blench (2018) suggests that Proto-Berber speakers had spread from the Nile River valley to North Africa 4,000-5,000 years ago due to the spread of pastoralism, and experienced intense language leveling about 2,000 years ago as the Roman Empire was expanding in North Africa. Hence, although Berber had split off from Afroasiatic several thousand years ago, Proto-Berber itself can only be reconstructed to a period as late as 200 A.D. Blench
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 /