 Jijel is a relic of the Pre-Hilalian Arabic dialects (resulting from the Muslim conquest of the Maghreb in the 7th and 8th centuries) once spoken over all of Constantine, Algeria but later mixed with Bedouin Hilalian dialects brought by the invasion of the Banu Hilal in the 11th century.Pre-Hilalian Arabic dialects remained intact only in a small area around Jijel while they were heavily mixed with bedouin dialects in the areas of Constantine, Mila, Collo and El Milia.Pre-Hilalian dialects also remain in the urban areas of Fez, Rabat, Tlemcen, Constantine and Tunis.