sentences:  It remained so until the arrival of the French at the end of the 19th.Barth passed through the Aouderas valley in 1850, and reported that it was only recently that the Kel Owey had pushed the Kel Geres and Kel Itesen Tuareg south and west out of the valley.Some Itesen landowners, though, remained Aouderas as late as 1970.