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
Berber languages of a lingua franca which became Proto-Berber. Various orthographies have been used to transcribe the Berber languages. In antiquity, the Libyco-Berber script (Tifinagh) was utilised to write Berber. Early uses of the script have been found on rock art and in various sepulchres. Among these are the 1,500 year old monumental tomb of the Tuareg matriarch Tin Hinan, where vestiges of a Tifinagh inscription have been found on one of its walls. Following the spread of Islam, some Berber scholars also utilised the Arabic script. There are now three writing systems in use for Berber languages: Tifinagh, the Arabic script,