Columbia subject headings:
Benin--History--To 1894.
Brazilians--Benin--History.
Freed persons--Benin--History.
Harvard subject headings:
Benin--History--To 1894
Brazilians--Benin--History.
Freed persons--Benin--History.
Princeton subject headings:
Benin--Social conditions.
Brazilians--Benin.
Brazilians--Nigeria.
Brazilians--Togo.
Nigeria--Social conditions.
Togo--Social conditions.