Columbia subject headings:
Harvard subject headings:
Cyril, Saint, Apostle of the Slavs, approximately 827-869.
Methodius, Saint, Apostle of the Slavs, approximately 825-884 or 885.
Moravia (Czech Republic)--Church history.
Princeton subject headings:
Civilization, Slavic--Byzantine influences.
Cyril, Saint, Apostle of the Slavs, approximately 827-869.
Europe, Central--Civilization--Byzantine influences.
Methodius, Saint, Apostle of the Slavs, approximately 825-884 or 885.