Columbia subject headings:
Crusades.
Islamic Empire--History--1258-1517.
Islamic Empire--History--750-1258.
Mamelukes.
Mongols--History.
Harvard subject headings:
Princeton subject headings:
Crusades--History.
Egypt--History--1250-1517.
Islamic Empire--History--1258-1517.
Mamelukes.
Mongols--Syria--History.
Syria--History--1260-1516.