 3000 then migrated, due to climate change, to the Nile valley and Egypt where they ruled under the name of Libyan Pharaohs.An Iraqi King expelled them southwards where they returned to their capital Nepta.Then they have been driven southwards again to Meroe until Izana drove them westwards to Wadi Howar and Kordofan in western Sudan and there they established their capital towns around Jebel Qadir in the Nuba Mountains and many other towns now in Darfur and Chad.