History 1,052 Church history 380 Devotion to 103 Catholic Church 90 Shrines 79 Spiritual life 56 Apparitions and miracles 55 Religious life and customs 50 Liturgy 47 Doctrines 42 Christian pilgrims and pilgrimages 40 Catholic authors 36 Christian saints 32 Church architecture 32 Apologetic works 30 Controversial literature 30 Missions 30 Religious aspects 30 Clergy 29 Catholics 25 Theology 25 Canon law 24 Anniversaries, etc 23 Monasticism and religious orders 22 Bishops 21 Buildings, structures, etc 21 Christian art and symbolism 21 Early works to 1800 17 Mass 16 Sources 16 Study and teaching 16 Monastic and religious life 15 Sermons 15 Superiors, Religious 15 Education 14