Jalaa
•Nigeria has a single language isolate, the Jalaa or Cen Tuum language spoken among the Cham in the Gombe area.
•Analysis so far suggests that it is unrelated to any other language in the world and thus is probably a survival from the foraging period when West Africa would have been occupied by small bands speaking a diverse range of now disappeared languages
•Other language isolates are Laal (Chad) and Bangi Me (Mali)
•Evidence from Mali (Onjougou), Birimi (Ghana) and Shum Laka (Cameroun) puts the settlement of West Africa by modern humans at least ca. 40,000 BP
•