History 11,561 Catholic Church 6,382 Devotion to 3,802 Church history 3,458 Religious aspects 2,789 Liturgy 2,412 Catholic authors 2,395 Doctrines 2,080 Missions 2,070 Shrines 2,037 Spiritual life 1,932 Christian saints 1,673 Christianity 1,540 Apparitions and miracles 1,525 Theology 1,316 Canon law 1,302 Clergy 1,274 Controversial literature 1,209 Education 1,206 Novenas 1,200 Christian life 1,103 Meditations 1,043 Christian ethics 922 Church and state 885 Church architecture 836 Biography 820 Early works to 1800 810 Christian pilgrims and pilgrimages 783 English 733 Catholics 730 Rosary 722 Lord's Supper 720 Religious life 633 Religious life and customs 621 Theology, Doctrinal 591