Controversial literature Christianity 51 History and criticism 37 Judaism 37 History 35 Religion 27 Religious aspects 27 more ... Civil war 18 Islam 16 Zionism 16 Theology, Doctrinal 15 Jews 11 Reformed Church 11 Church history 10 Criticism, interpretation, etc 10 Apologetic works 9 Christianity and antisemitism 8 Christianity and other religions 8 Arab-Israeli conflict 7 Lutheran Church 7 Relations 7 African Americans 6 Antisemitism 6 Apologetics 6 Mormon Church 6 Philosophy 6 Politics and government 6 Doctrines 5 Black Muslims 4 History of doctrines 4 less ...