Columbia subject headings:
Black people--Africa--Civilization.
Black people--Civilization.
Black people--Intellectual life.
Harvard subject headings:
Africa, Sub-Saharan--Civilization
Africa--Civilization--Congresses
African Americans--Congresses
Black people--Africa
Black people--Congresses.
Princeton subject headings:
Black people--Africa--Civilization.
Black people--Civilization.
Black people--Intellectural life.