Church history 620 History 481 Religious aspects 75 Christianity 74 Church and state 54 Politics and government 42 Reformation 40 History of doctrines 34 Catholic Church 33 Religion 28 Christianity and politics 25 Missions 24 Protestant churches 23 Religious life and customs 22 Evangelicalism 21 History and criticism 21 Bishops 19 Influence 14 Monasticism and religious orders 14 Clergy 13 Relations 13 Doctrines 12 Intellectual life 12 Baptists 11 Christian sociology 11 Religious life 11 Catholics 10 Christianity and other religions 10 Protestantism 10 Social conditions 10