Columbia subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Commerce.
Africa, Sub-Saharan--History.
Chad--Social life and customs.
Ibn Furṭū, Aḥmad, active 1576-1578.
Idris, Mai of Bornu, approximately 1533-approximately 1596.
Islam and politics--Africa, Sub-Saharan.
Islam--Africa, Sub-Saharan.
Kanem-Bornu Empire--History.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Niger--Social life and customs.
Nigeria--Social life and customs.
Harvard subject headings:
Africa, Sub-Saharan--Civilization.
Africa, Sub-Saharan--Commerce.
Africa, Sub-Saharan--History.
Borno State (Nigeria)--History.
Borno State (Nigeria)--Kings and rulers.
Chad, Lake (Region)--History.
Chad, Lake (Region)--Social life and customs.
Ibn Furṭū, Aḥmad, active 1576-1578.
Idris, Mai of Bornu, approximately 1533-approximately 1596.
Islam--Africa, Sub-Saharan.
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Princeton subject headings:
Islam and politics--Nigeria.
Kanem-Bornu Empire--History.