Columbia subject headings:
Mahdism.
Mahdī, Muḥammad Aḥmad, 1848-1885.
Sudan--History--1821-1881.
Sudan--History--1881-1899.
Harvard subject headings:
Muḥammad Aḥmad, calling himself al-Mahdī, 1848-1885.
Sudan--History--1821-1881
Sudan--History--1881-1899.
Princeton subject headings:
Mahdism.
Mahdī, Muḥammad Aḥmad, 1848-1885.
Sudan--History--1821-1881.
Sudan--History--1881-1899.