was it known by any other name historically?
Kingdom of Kush
Sudan
The Kingdom of Kush was an ancient Nubian state centered on the confluences of the Blue Nile and White Nile, and the Atbarah River and the Nile River
third largest country of africa on the red sea Sudan where is this country situated? North-East Africa
wiki:19594023
Sudan [SEP] Kingdom of Kush (c. 800 BC–350 AD)
The Kingdom of Kush was an ancient Nubian state centered on the confluences of the Blue Nile and White Nile, and the Atbarah River and the Nile River. It was established after the Bronze Age collapse and the disintegration of the New Kingdom of Egypt, centered at Napata in its early phase. After King Kashta ("the Kushite") invaded Egypt in the eighth century BC, the Kushite kings ruled as pharaohs of the Twenty-fifth Dynasty of Egypt for a century before being defeated and driven out by the Assyrians. At the height of their glory, the Kushites conquered an empire that stretched from what is now known as South Kordofan to the Sinai.