Columbia subject headings:
Buddhism--History--To ca. 100 A.D.
Buddhism--Sri Lanka.
Theravāda Buddhism--Sri Lanka.
Harvard subject headings:
Buddhism--History--To ca. 100 A.D.
Theravāda Buddhism--Sri Lanka.
Princeton subject headings:
Buddhism--History--To ca. 100 A.D.
Theravāda Buddhism--Sri Lanka.