History Islam 24 Dissertations 10 Dissertations, Academic 9 Abbasids 6 Intellectual life 6 Politics and government 6 Civilization 5 Islamic law 5 Arabic language 4 Criticism, interpretation, etc 4 Islamic education 4 Religious aspects 4 Study and teaching 4 Intellectual life History 3 Islamic Empire 3 Islamic learning and scholarship 3 Jews 3 Muslims 3 Scholars, Muslim 3 Social conditions 3 Ulama 3 Civilization, Islamic 2 Da'wah (Islam) 2 Description and travel 2 Economic conditions 2 Economic conditions History 2 Education 2 History and criticism 2 Islamic architecture 2