The Orient under the caliphs 2026-02-16T06:08:29+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Kremer, Alfred, Freiherr von, 1828-1889 (Studies in Islamic history (Philadelphia) ;, 1977)