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
Proto-Berber language the use of a lingua franca which became Proto-Berber. Reconstructions of the ancient stages of this language are based on comparisons with other Afro-Asiatic languages in various stages and on the comparisons between the varieties of modern Berber languages or with Touareg, considered by some authors like Prasse to be the variety that best preserved proto-Berber. Some authors have criticised the reconstructed Proto-Berber phonological systems as being too close to those of modern Berber varieties because the common elements derived from the comparisons project modern phonology onto the Proto-Berber stage. Some earlier attempts to derive the phonemic inventory of Proto-Berber