The publication of The Formation of the Sunni Schools of Law, Ninth-Tenth Centuries C.E., first as a University of Pennsylvania doctoral dissertation in 1992, and subsequently as a monograph in 1997 (Studies in Islamic Law and Society, Brill), established Christoph Melchert as a preeminent scholar of the history of Islamic law and institutions. Through close readings of works on fiqh, meticulous unpacking of data in biographical dictionaries,...