History of Sudan association with the single largest political grouping, the [[National Umma Party Sudan|Umma Party]] (once led by a descendant of the Mahdi, [[Sadiq al Mahdi]]). Taking advantage of conditions resulting from Ottoman-Egyptian exploitation and maladministration, the Mahdi led a nationalist revolt culminating in the fall of [[Khartoum]] on 26 January 1885. The interim governor-general of the Sudan, the British Major-General [[Charles George Gordon]], and many of the fifty thousand inhabitants of Khartoum were massacred. The Mahdi died in June 1885. He was followed by [[Abdallahi ibn Muhammad]], known as the [[Caliph|Khalifa]], who began an expansion of Sudan's area into Ethiopia. Following
Khartoum (state) Nile State, and in the west by North Kurdufan. There are several etymologies for the name of Khartoum. The explanation suggested as "most correct" by the state government's website is that it comes from the Arabic for "elephant's trunk", which describes the shape of the site of the city at the confluence of the two Niles, where a stretch of land extends into the water. Other stories are that it is a corruption of "gurtoum", the name for seeds of the sunflower plant, supposedly used by Roman invaders at the current site of Khartoum to treat soldiers' wounds, or that