Title: Hagarism
Content:  Robert G. Hoyland characterized Hagarism as evolving into a wider inter-disciplinary and literary approach, and said that additional studies would be published in the Studies in Late Antiquity and Early Islam (SLAEI Series) in which his book appears. Since then the "SUNY Series in Near Eastern Studies" has also published a selection of authors who are continuing to produce work related to a modified form of this theory. The 2012 documentary Islam: The Untold Story, by English novelist and popular historian Tom Holland, is based on Crone's theories.
Title: Hagarism
Content:  variety of Judeo-Christian and Middle-Eastern sources while Muhammad was the herald of Umar "the redeemer", a Judaic messiah. Although the hypotheses proposed in Hagarism have been criticized, even by the authors themselves,  the book has been hailed as a seminal work in its branch of Islamic historiography. The book questioned prevailing assumptions about traditional sources, proposing new interpretations that opened avenues for research and discussion. It connected the history of early Islam to other areas, from Mediterranean late antiquity to theories of acculturation. Following earlier critical work by Goldziher, Schacht, and Wansbrough, it challenged scholars to use a much wider methodology, including techniques already used in biblical studies. It is thus credited for provoking a major development of the field, even though it might be viewed more as a 'what-if' experiment than a research monograph.
Title: Hagarism
Content:  is perhaps unnecessary since the authors make no effort to prove it (the hypothesis of the book) in detail ... Where they are only giving a new interpretation of well-known facts, this is not decisive. But where the accepted facts are consciously put upside down, their approach is disastrous." Jack Tannous, associate professor at Princeton, called the book "brilliantly provocative" in 2011. He commented: "Apart from Internet enthusiasts and religiously-motivated polemicists, nobody today, not even Cook and Crone themselves, believes that the picture of early Islam put forth in Hagarism is an accurate one. But the legacy of Hagarism has endured, for in one thin little volume, Cook and Crone put their fingers on a nagging 
Title: Hagarism
Content:  Hagarism: The Making of the Islamic World is a 1977 book about the early history of Islam by the historians Patricia Crone and Michael Cook. Drawing on archaeological evidence and contemporary documents in Arabic, Armenian, Coptic, Greek, Hebrew, Aramaic, Latin and Syriac, Crone and Cook depict an early Islam very different from the traditionally-accepted version derived from Muslim historical accounts. According to the authors, Hagarenes is a term used commonly by various sources (Greek Magaritai, Syriac Mahgre or Mahgraye) to describe the 7th-century Arab conquerors. According to them, the Arab conquests and the formation of the caliphate were a peninsular Arab movement inspired by Jewish messianism. In alliance with the Jews, the Arabs attempted to reclaim the Promised Land from the Byzantine Empire. The Qur'an was a product of 8th-century edits of various materials drawn from 
Title: Hagarism
Content:  in an electric way. ... As a book making a specific argument, Hagarism was ultimately a failure, but in its stimulus of further research, writing, debate, and especially by challenging Islamicists to look beyond the confines of Arabic sources to the rich literatures of the Middle East that existed before, during, and  after the rise of Islam, Hagarism was one of those rare books that changed a field." Stephen Humphreys, professor at UCSB, wrote in his analytic review of the historiography of early Islam: "Unsurprisingly, the Crone-Cook interpretation has failed to win general acceptance among Western Orientalists, let alone Muslim scholars. However, their approach does squarely confront the disparities between early Arabic tradition on the Conquest 
Title: Hagarism
Content:  'leg pull', pure 'spoof'." Eric Manheimer, reviewing the work in The American Historical Review, commented that, "The research on Hagarism is thorough, but this reviewer feels that the conclusions drawn lack balance. The weights on the scales tip too easily toward the hypercritical side, tending to distract from what might have been an excellent study in comparative religion." Writing on Speculum, Oleg Grabar described Hagarism as a "brilliant, fascinating, original, arrogant, highly debatable book" and writes that "the authors' fascination with lapidary formulas led them to cheap statements or to statements which require unusual intellectual gymnastics to comprehend and which become useless, at 
Title: Hagarism
Content: Coster, Marije, "Hagarism", in Muhammad in History, Thought, and Culture: An Encyclopedia of the Prophet of God (2 vols.), Edited by C. Fitzpatrick and A. Walker, Santa Barbara, ABC-CLIO, 2014, Vol I, pp. 236–239. 
Title: Hagarism
Content:  that a vocabulary of motives can be freely extrapolated from a discrete collection of literary stereotypes composed by alien and mostly hostile observers, and thereupon employed to describe, even interpret, not merely the overt behaviour but also intellectual and spiritual development of the helpless and mostly innocent actors. Where even the sociologist fears to tread, the historian ought not with impunity be permitted to go." R. B. Serjeant wrote in the Journal of the Royal Asiatic Society that Hagarism is "not only bitterly anti-Islamic in tone, but anti-Arabian. Its superficial fancies are so ridiculous that at first one wonders if it is just 
Title: Hagarism
Content:  Hagarism begins with the premise that Western historical scholarship on the beginnings of Islam should be based on contemporary historical, archaeological and philological data, as is done for the study of Judaism and Christianity, rather than Islamic traditions and later Arabic writings. The tradition expresses dogma, and tells historically irreconcilable and anachronistic accounts of the community's past. By relying on contemporary historical, archaeological and philological evidence, stressing non-Muslim sources, the authors attempt to reconstruct and present what they argue is a more historically accurate account of Islam's origins.
Title: Hagar
Content:  the women whose duty it is to produce children for their masters, assuming the place of their wives in a rape ceremony based upon the biblical passage. In the recent book of nonfiction, The Woman Who Named God: Abraham's Dilemma and the Birth of Three Faiths, by Charlotte Gordon provides an account of Hagar's life from the perspectives of the three monotheistic religions, Islam, Judaism, and Christianity. In 2019, Nyasha Junior published a book on Hagar entitled Reimaging Hagar: Blackness and Bible which provides a reception history of Hagar that focuses on interpretations of Hagar as a black woman and particularly those interpretations of Hagar that are made by African Americans.

Question: Who is the author of Hagarism?
Answer: Patricia Crone.
Michael Cook.
Michael Allan Cook.