Columbia subject headings:
Adygei.
Caucasus--History--19th century.
Eastern question (Balkan)
Ethnology--Caucasus.
Russia--Foreign relations--1801-1917.
Russia--History--1801-1917.
Harvard subject headings:
Caucasus, Northern (Russia)--History.
Circassians--History--19th century.
Eastern question (Balkan)
Princeton subject headings: