Columbia subject headings:
Abbasids.
Jāḥiẓ, -868 or 869.
Harvard subject headings:
Abbasids.
Jāḥiẓ, -868 or 869.
Princeton subject headings:
Abbasids.
Islamic Empire--History--750-1258.
Jāḥiẓ, -868 or 869--Criticism and interpretation.