or Abdullahi born 1846, Sudan died Nov. 24, 1899, Kordofan Political and religious leader who succeeded Muammad Amad (al-Mahd) as head of the Mahdist movement in the Sudan in 1885. He launched attacks against the Ethiopians and invaded Egypt, securing his position by 1891. In 1896 Anglo-Egyptian forces began to reconquer the Sudan. Abd Allh resisted until 1898, when he was forced to flee Omdurman. He died in battle one year later