Columbia subject headings:
Harvard subject headings:
Christianity--Ukraine--History.
Millennium of Christianity in Kievan Rus, 988-1988.
Ukraine--Church history--Chronology.
Ukraine--History--Chronology.
Princeton subject headings:
Catholic Church--Byzantine rite, Ruthenian--History.
Catholic Church--Byzantine rite, Ukrainian--History.
Orthodox Eastern Church--Ukraine--History.
Ukraine--Church history.