After Saʿīd’s death in 1863, Ismāʿīl Pasha became viceroy of Egypt. Educated in Egypt, Vienna, and Paris, Ismāʿīl had absorbed the European interest in overseas adventures as well as Muḥammad ʿAlī’s desire for imperial expansion and had imaginative schemes for transforming Egypt and the Sudan into a modern state by employing Western technology. First he hoped to acquire the rest of the Nile basin, including the southern Sudan and the Bantu states by the Great Lakes of east-central Africa. To finance this vast undertaking and his projects for the modernization of Egypt itself, Ismāʿīl turned to the capital-rich nations of western Europe, where investors were willing to risk their savings at high rates of interest in the cause of Egyptian and African development. But such funds would be attracted only as long as Ismāʿīl demonstrated his interest in reform by intensifying the campaign against the slave trade in the Sudan. Ismāʿīl needed no encouragement, for he required the diplomatic and financial support of the European powers in his efforts to modernize Egypt and expand his empire. Thus, these two major themes of Ismāʿīl’s rule of the Nilotic Sudan—imperial expansion and the suppression of the slave trade—became intertwined, culminating in a third major development, the introduction of an ever-increasing number of European Christians to carry out the task of modernization.

In 1869 Ismāʿīl commissioned the Englishman Samuel White Baker to lead an expedition up the White Nile to establish Egyptian hegemony over the equatorial regions of central Africa and to curtail the slave trade on the upper Nile. Baker remained in equatorial Africa until 1873, where he established the Equatoria province as part of the Egyptian Sudan. He had extended Egyptian power and curbed the slave traders on the Nile, but he had also alienated certain African tribes and, being a rather tactless Christian, Ismāʿīl’s Muslim administrators as well. Moreover, Baker had struck only at the Nilotic slave trade. To the west, on the vast plains of the Baḥr al-Ghazāl (now in South Sudan), slave merchants had established enormous empires with stations garrisoned by slave soldiers. From these stations the long lines of human chattels were sent overland through Darfur and Kordofan to the slave markets of the northern Sudan, Egypt, and Arabia. Not only did the firearms of the Khartoumers (as the traders were called) establish their supremacy over the peoples of the interior but also those merchants with the strongest resources gradually swallowed up lesser traders until virtually the whole of the Baḥr al-Ghazāl was controlled by the greatest slaver of them all, al-Zubayr Raḥmah Manṣūr, more commonly known as Zubayr (or Zobeir) Pasha. So powerful had he become that in 1873, the year Baker retired from the Sudan, the Egyptian viceroy (now called the khedive) appointed Zubayr governor of the Baḥr al-Ghazāl. Ismāʿīl’s officials had failed to destroy Zubayr as Baker had crushed the slavers east of the Nile, and to elevate Zubayr to the governorship appeared the only way to establish at least the nominal sovereignty of Cairo over that enormous province. Thus, the agents of Zubayr continued to pillage the Baḥr al-Ghazāl under the Egyptian flag, while officially Egypt extended its dominion to the tropical rainforests of the Congo region. Zubayr remained in detention in Cairo after going there in 1876 to press his claims for a new title.

Ismāʿīl next offered the governorship of the Equatoria province to another Englishman, Charles George Gordon, who in China had won fame and the sobriquet Chinese Gordon. Gordon arrived in Equatoria in 1874. His object was the same as Baker’s—to consolidate Egyptian authority in Equatoria and to establish Egyptian sovereignty over the kingdoms of the great East African lakes. He achieved some success in Equatoria but none in the lakes region. When Gordon retired from Equatoria, the lake kingdoms remained stubbornly independent.

In 1877 Ismāʿīl appointed Gordon governor-general of the Sudan. He returned to the Sudan to lead a crusade against the slave trade and, to assist him in this humanitarian enterprise, surrounded himself with a cadre of European and American Christian officials. In 1877 Ismāʿīl had signed the Anglo-Egyptian Slave Trade Convention, which provided for the termination of the sale and purchase of slaves in the Sudan by 1880. Gordon set out to fulfill the terms of this treaty, and, in whirlwind tours through the country, he broke up the markets and imprisoned the traders. His European subordinates did the same in the provinces.

Gordon’s crusading zeal blinded him to his invidious position as a Christian in a Muslim land and obscured from him the social and economic effects of arbitrary repression. Not only did his campaign create a crisis in the Sudan’s economy but the Sudanese soon came to believe that the crusade, led by European Christians, violated the principles and traditions of Islam. By 1879 a strong current of reaction against Gordon’s reforms was running through the country. The powerful slave-trading interests had, of course, turned against the administration, while the ordinary villagers and nomads, who habitually blamed the government for any difficulties, were quick to associate economic depression with Gordon’s Christianity. And then suddenly, in the middle of rising discontent in the Sudan, Ismāʿīl’s financial position collapsed. In difficulties for years, he could now no longer pay the interest on the Egyptian debt, and an international commission was appointed by the European powers to oversee Egyptian finances. After 16 years of glorious spending, Ismāʿīl sailed away into exile. Gordon resigned.

Gordon left a perilous situation in the Sudan. The Sudanese were confused and dissatisfied. Many of the ablest senior officials, both European and Egyptian, had been dismissed by Gordon, departed with him, or died in his service. Castigated and ignored by Gordon, the bureaucracy had lapsed into apathy. Moreover, the office of governor-general, on which the administration was so dependent, devolved upon Muḥammad Raʾūf Pasha, a mild man ill-suited to stem the current of discontent or to shore up the structure of Egyptian rule, particularly when he could no longer count on Egyptian resources. Such then was the Sudan in June of 1881 when Muḥammad Aḥmad declared himself to be the Mahdī (the “Divinely Guided”).