Ancient records always referred to a vast powerful "Kingdom of Kush." Robert E. Howard had his barbarian hero, Conan, run into 'Kushites' a number of times. The New Testament referred to all of Nubia as Kush, because Kush was the name of one of the sons of Ham who settled northeast Africa.
As it turns out, not only has there been more evidence discovered about those ancient people in Sudan, there's even enough gold to make a Cimmerian warrior take notice.
At sites like Kerma, evidence of a sophisticated culture still exists. This Nubian land, long dominated by Egypt, is being discovered still today.
Conan The Barbarian. Copyright: Robert E. Howard Estate.