Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Bayanin: Shaidar ilimin harsuna ta nuna cewa da shigewar lokaci, mutanen da suke yaren Nilotic, kamar su Dinka, Shilluk, da Luo, suka mamaye yankin. Wadannan kungiyoyi sun yada daga Sudd marshlands, inda shaidar archaeological ya nuna cewa al'adun da ke dogara da kiwon shanu na dabbobi sun kasance tun daga 3000 KZ, kuma al'adun Nilotic a wannan yanki na iya ci gaba har zuwa wannan kwanan wata. Shaidar archaeological, kazalika da shaida ta zahiri a cikin rayuwar Nilotes gami da gidajen su 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. Wannan ya zo daidai da rushewar masarautun Krista na Nubian na Makuria da Alodia da kuma kutsawa cikin 'yan kasuwa Larabawa zuwa tsakiyar Sudan. Daga Larabawa, mutanen Sudan ta Kudu na iya samun sabbin nau'ikan shanu marasa kwalliya. Masanin ilimin kimiyyar kayan tarihi Roland Oliver ya lura cewa lokacin kuma yana nuna farkon Zamanin ƙarfe tsakanin Nilotics. Wadannan dalilai na iya bayyana yadda masu magana da Nilotic suka fadada don mamaye yankin.  Tambaya: Waɗanne mulkoki ne suka faɗi?
Masarautun Kirista na Nubian na Makuria da Alodia