Djado
According to the tradition of the local  Kanuri , the  Sao founded Djado. They also founded other places, such as Tedjerhe in southern Fessan. Tedjerje is the oldest known setltement in of the Kaouar. It was the most important city culture of the Kotoko south of Lake Tchad. The ruins lookslike those of a city. Their modern-day name links them to Djado in Nafusa Mountains, southwest of Tripolis.