Rocky outcrops along this body of water called got allowed chiefdoms called rwodi like Patiko to develop and later evade Karimojong raids. A line of “divine kings” starting with the culture hero Nyikang ruled this body of water’s Shilluk Kingdom, which repeatedly fought a kingdom led from Sennar. The Bari and related peoples migrated up this river after the end of the baqṭ (“bukt”) treaty, which caused kingdoms led from Soba and Dongola to decline (10[1])and allowed the Funj Sultanate to expand along this river. Alodia and Makuria’s loss of control over this river forced the Nuer (“NOO-er”) and Dinka (10[1])to migrate further up this river to avoid slave raids by the Mamluk (10[1])Sultanate and a later conquest by Muhammad Ali Pasha. For 10 points, name this river around which Nubian kingdoms were based. ■END■