Islam Religious aspects 20 History 15 Muslims 9 Study and teaching 7 Relations Islam 6 Religious aspects Islam 6 Christianity 5 Doctrines 5 Relations 5 Relations Buddhism 5 Religion 5 Buddhism 4 Islamic education 4 Research 4 Apostasy 3 Islam and politics 3 Islam in mass media 3 Islamic religious education 3 Islamophobia 3 Psychology 3 Public opinion 3 Religions 3 Social aspects 3 Asceticism 2 Christianity and other religions 2 Comparative studies 2 Customs and practices 2 Da'wah 2 Da'wah (Islam) 2