Biography -- Muslims -- 6 Soldiers -- 3 Arabic 2 Early works to 1800 -- 2 History -- 2 Scholars, Muslim -- 2 more ... 622-661 1 Arabic -- 1 Authors, Arab -- 1 Caliphs 1 Caliphs -- 1 Dictionaries -- 1 Doctrines 1 Islam -- 1 Islamic Empire 1 Islamic Empire -- 1 Ulama -- 1 less ...