The Dinka are black, as they do not have iron, and therefore you see the Dinka's color as intensely black, and the Bongo's color as dark. They do not extract iron and work with it. And the Kulu, and they are west of the Bongo, and they resemble them in their appearance, morals, and customs. And the Jur, their land is between the Dinka and the Bongo, and they trace their lineage to the Shilluk. They speak their own language and do not pay attention to imitating their black neighbors, but rather they pay attention to agriculture. And they work with iron, and they are knowledgeable in woodworking and making tools. The A'ar are on the Bahr al-Ghazal river, a branch of the Nile, and they are a branch of the Dinka, and they are famous for treachery and cunning. And the Moro are on the Bahr river, near the Agar. And the Duer are west of the Dinka, and they are a branch of the Shilluk. And the Shiri, and they are neighbors of the Niam Niam in the farthest reaches of Bahr al-Ghazal, and they are famous for their strength, cleanliness, orderliness, love of work, and generosity of spirit, with the ability to endure hardship, fatigue, and hunger. They have no domesticated animals or birds except chickens. And the Niam Niam, some of them have entered our discussion, and they are famous for eating human flesh. And the Furatit, in the northern western Bahr al-Ghazal and southern Darfur, and they are numerous tribes, seven of which are included in our discussion: Dangu, the people of the copper mine, Kara, Kufru, Yis, Bab, Faruq, and Shala. And the Nuba, and they inhabit the mountains to the south of Kordofan, attributed to them. They are from the tribes of the Wod, and the least black among them. They have medium complexions, slender bodies, and good morals. The Arabs raid their lands in the summer in search of water and food, and therefore you see many of them. However, they do not have the strength, and their numbers before the revolution of Muhammad Ahmad al-Mahdi... The Mahdist revolution weakened them until only half of that number remains. And the most famous tribes of Sudan in the Upper Blue Nile, in the farthest reaches of Sennar and Fazughli: The Bithron, and they inhabit the mountains south of Khor al-Dilib in the farthest island of Sennar, and they are extremely greedy. And the Jabalayun, and they are the inhabitants of Faka, the capital of Fazughli. And the Qamur, overlooking Faka. And the Lanqasim, to their west, and they are robbers and bandits. And the Berti, and they are the inhabitants of Beni Shangul, south of Faka, which now belongs to Ethiopia. These are the most famous tribes of Sudan in the land of Sudan. The Arabs used to raid them and bring slaves from them, taking what they needed and sending the rest to the regions for trade. But the government...