Columbia subject headings:
Imamate--Early works to 1800.
ʻAlī ibn Abī Ṭālib, Caliph, 600 (ca.)-661--Early works to 1800.
Harvard subject headings:
Imamate--Early works to 1800.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661--Early works to 1800.
Princeton subject headings:
Imamate--Early works to 1800.
ʻAlī ibn Abī Ṭālib, Caliph, approximately 600-661.