Religion Church history 56 History 56 Primitive and early church 40 Christianity and other religions 29 Christianity 27 Roman 23 more ... Judaism 15 Religious aspects 11 Paganism 10 Greek 9 History of doctrines 8 Relations 8 Criticism, interpretation, etc 7 Romans 7 Christianity and politics 6 Civilization 6 Early church 6 Emperors 6 History and criticism 6 Interfaith relations 6 Power (Social sciences) 6 Church and state 5 Politics and government 5 Religion and state 5 Christianity and culture 4 Kings and rulers 4 Manners and customs 4 Social change 4 Social life and customs 4 less ...