Ecclesiastical history -- See Church history Here are entered works on the institutional history of the church. Works on the Christian religion including its origin, beliefs, practices and influence treated collectively are entered under Christianity. --headings beginning with the word Christian; names of denominations, sects, churches, councils, etc.; and subdivision Church history under names of countries, cities, etc.
Ecclesiastical vestments -- See Church vestments Here are entered works on the distinctive dress and insignia worn by clergy and their assistants when performing liturgical and other services of the church. Works on the clothing worn by clergy in daily life and on the street are entered under Clergy--Costume.
--subdivision Pastoral letters and charges under names of individual denominations, e.g. Catholic Church--Pastoral letters and charges
Ecclesiastical year -- See Church year Here are entered works on the Christian festivals with their cycles, as making up the Christian or church year. Works on the origin of festivals and fasts are entered under Fasts and feasts. Works containing computations for finding these days are entered under Church calendar.