Roman Catholic Archdiocese of Khartoum its see, the present Sudanese capital, as its southern territory was split off to establish the Apostolic Prefecture of Bahr el-Ghazal, which is now the Diocese of Wau, somewhat approximating the split between Sudan and South Sudan. However it continued to cover Niger, Chad and stretched into modern Nigeria and Cameroon. On 28 April 1914 the Apostolic Prefecture of Adamaua (now the Diocese of Nkongsamba) was formed, taking territory from the Apostolic Vicariate of Khartoum. It lost territories again to establish missionary jurisdictions becoming current dioceses : On 12 December 1974 it was promoted as Metropolitan Archdiocese of Khartoum. In
Siege of Khartoum injustices caused by the Egyptian colonial administration: arbitrary imprisonments were cancelled, torture instruments were destroyed, and taxes were remitted. To enlist the support of the population, Gordon legalised slavery, despite the fact that he himself had abolished it a few years earlier. This decision was popular in Khartoum, but caused controversy in Britain. Gordon was determined to "smash up the Mahdi". He requested that a regiment of Turkish soldiers be sent to Khartoum as Egypt was still nominally a province of the Ottoman Empire. When this was refused, Gordon asked for a unit of Indian Muslim troops and later for