Columbia subject headings:
Harvard subject headings:
China--Antiquities.
China--Civilization--221 B.C.-960 A.D.
China--Civilization--To 221 B.C.
China--History--Qin dynasty, 221 B.C.-207 B.C.
Princeton subject headings:
China--Civilization--221 B.C.-960 A.D.--Congresses.
China--History--Qin dynasty, 221-207 B.C.--Congresses.