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 (; ') to the west. The city is the capital of the state of Khartoum. The origin of the word, "Khartoum", is uncertain. One theory argues that "khartoum" is derived from Arabic "khurṭūm" ( '), probably referring to the narrow strip of land extending between the Blue and White Niles. Dinka scholars argue that the name derives from the Dinka words "Khar-tuom" (Dinka-Bor dialect) or "Khier-tuom" as is the pronunciation in various Dinka Diaelects. These translate to a "place where rivers meet". This is supported by historical accounts which place the Dinka homeland in central Sudan (around present-day Khartoum) as