Reasons for Rive-Lake Nilotes migration from Bahr-elGhazal region:River-lake nilotes They are sometimes referred to as the southern Luos to differentiate them from other river-lake nilotes in Uganda and Sudan like the Dinka, Shilluk, Bor, Anwak, among others. They are believed to have originated from Bahr-elGhazal region of southern Sudan. They then migrated to Pubungu Pakwach in Uganda where they settled by 1450 AD.In this lesson, we are going to look at the reasons for their migration from Bahr-elGhazal region.