Islamic Empire -- History -- 15 Biography 4 Caliphs -- 4 Caliphs 3 Islam 2 Biography -- 1 more ... Caliphate 1 History 1 Imams (Shiites) 1 Islam -- 1 Islamic Empire 1 Islamic stories, Malay 1 Leadership -- 1 Muslims -- 1 Politics and government 1 Religious aspects -- 1 Shi'ah -- 1 Syria -- 1 War -- 1 less ...