How did Muhammad Ahmad al-Mahdi become a religious leader in Sudan?

Muhammad Ahmad al-Mahdi became a religious leader in Sudan by transitioning from orthodox religious studies to a mystical interpretation of Islam within the Sufi tradition. After joining the Sammāniyyah order, he eventually separated himself from the official ruling class and established a hermitage on Abā Island, where he began attracting his own disciples.12

His rise was fueled by widespread discontent among the Sudanese population toward the Turco-Egyptian regime, which was perceived as corrupt, oppressive, and un-Islamic due to its fiscal injustices, suppression of the slave trade, and the presence of non-Muslim European officials.12

In 1881, Muhammad Ahmad proclaimed his divine mission to purify Islam and destroy governments that defiled it. By publicly assuming the title of al-Mahdi—a figure expected to restore the faith—he unified various groups, including oppressed taxpayers, merchants, and nomadic tribes, into a powerful military force. His movement successfully challenged the existing administration, culminating in the capture of Khartoum in 1885 and the establishment of a theocratic state.12