For one thousand years Christianity predominated in Northern Sudan. From the sixth century to the fifteenth century Christianity was the official religion of the three Sudanese kingdoms of Nubia, Alwa, and Makuria (later Dotawo). For nine hundred years the Christians of Sudan successfully resisted the southward expansion of Islam.
Yet by the late fifteenth century the weakened Christian kingdoms reeled from waves of Arab attacks. Towns were burned and confusion spread. Nubia fell. The fall of the Christian kingdom of Dotawo in 1484 and the fall of the southern most kingdom of Alwa in 1530 heralded the demise of Christian faith in Northern Sudan. Today Sudan is an officially Islamic state. The National Islamic Front (NIF) regime declared Jihad (holy war) against the Christian South and against the Arabic speaking Nuba Christians in central Sudan.