Shaida ta ilimin harshe ta nuna cewa a tsawon lokaci masu magana da Nilotic, kamar su Dinka, Shilluk, da Luo, sun karɓi iko. Waɗannan ƙungiyoyin sun bazu daga Sudd marshlands, inda shaidar archaeological ta nuna cewa al'adun da ke kan kiwon shanu na yau da kullun sun kasance tun daga 3000 KZ, kuma al'adun Nilotic a wannan yankin na iya ci gaba har zuwa wannan ranar. Shaidar archaeological, da kuma shaidar zahiri a cikin rayuwar Nilotes gami da gidajensu masu siffar dome da tukuls, sun nuna cewa wataƙila sun ba da babbar gudummawa ga shugabanci da wadatar Masarautar Nubia kafin da kuma lokacin Daular 25. Da alama fadada Nilotic daga Sudd Marshes zuwa sauran Kudancin Sudan ya fara ne a karni na 14.
Masarautun Kirista na Nubian na Makuria da Alodia