They occupy the country west of the White Nile between the Shilluk territory and Dar Nuba, being found principally in Kordofan.
They are true nomad Arabs, having intermarried little with the Nuba, and have preserved most of their national characteristics.
The date of their arrival in the Sudan is uncertain: they appear to have drifted up the Nile valley and to have dispossessed the original Nuba population.
They claim to rule the Kasu'or Meroitic Ethiopians; and the fifth inscription records an expedition along the Atbara and the Nile to punish the Nuba and Kasu, and a fragment of a Greek inscription from Meroe was recognized by Sayce as commemorating a king of Axum.
From Nuba, the Arabic form of the name of this people, comes the modern Nubia, a term about the precise meaning of which no two writers are in accord.