Werner CaskelWerner Caskel was a German historian of Muslim people. Caskel's specialties were Islamic history and tribal genealogy. He taught as professor at the University of Berlin, University of Cologne.Literary worksArabic inscriptions, 1936Die Beduinen, 2 vols., 1939-1944Kalbī, Hišām Ibn-Muḥammad al-: Ǧamharat an-nasab, 2 vols., 1966