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
Berber languages lives outside these regions in the bigger cities. Moroccan linguist Mohamed Chafik claims that 80 percent of Moroccans are Berbers. It is not clear, however, whether he means "speakers of Berber languages" or "people of Berber descent". The division of Moroccan Berber languages into three groups, as used by Ethnologue, is common in linguistic publications, but is significantly complicated by the presence of local differences: Shilha is subdivided into Shilha of the Draa River valley, Tasusit (the language of the Souss) and several other mountain languages. Moreover, linguistic boundaries are blurred, such that certain languages cannot accurately be described as