http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"A guide to the legend and lore behind the traditions, rituals, foods, games, animals, and other symbols and activities associated with holidays and holy days, feasts and fasts, and other celebrations, covering calendar, ethnic, religious, historic, cultural, national, promotional, sporting, and ancient events, as observed in the United States and around the world."
Revised edition of: Holiday symbols. 2nd edition c2000.
Includes bibliographical references and indexes.