If I were going to pick ten "must read" books out of the two hundred or so I have reviewed for Amazon or in print, this brilliant work would be near the top. One of the others was Stanley Jaki's Savior of Science; Stark treats Christianity and science in far more detail and more convincingly than Jaki, and three related aspects of religious history just as well. Your education is not complete, and may be defective, until you have come to terms with Stark's arguments.
Stark makes four main arguments. First, faith in God leads to quarrelsomeness (what someone referred to as the "joy of sects") and to reformations. (Brilliantly contrasting the "Church of Power" and the "Church of Piety.") Stark has some very interesting insights deriving from Adam Smith about what happens when a religion has a monopoly, and what happens when (as in the US) there is a free market of spiritual ideas in effect. But he somehow manages to spin his sociological theories without impinging on individual human choice.
Second, Stark argues that faith in God encouraged Christians to invent science. Having read other books making the same claim, I think Stark's approach to this question is one of the best. Not only does he go over the development of technology in the so-called "Dark Ages," and show how the "Enlightenment" picture of Copernican era science is a myth, he studies 52 key early scientists, and shows that more than 60 % were "devout," while only 2 were skeptics. The critic below who asks why Christianity did not produce science in Russia did not read attentively: Stark argues that faith in God was a necessary, but not sufficient, cause of the rise of science. Other factors were also involved. True, he does goes on quite a tangent (10-15 pages; but in a 400 + page book) on evolution. But even there, he finds some interesting things to say -- I didn't know the story of the debate between Huxley and Wilberforce was untrue, for example.
The third section of the book gives a detailed, and I think true, explanation of the witchhunts. "Anti-Semitic violence, persecution of heretics, and witch hunts were collateral results of conflicts between major religious forces" (ie, Islam and Christianity). I do not think this "denigrates" or "trivializes" the idea that witchhunting was an act of "social solidarity," as is claimed below; in fact Stark looks in detail at such community-level causes as well as the "big picture." (See the works of Rene Girard for fascinating insight on "scapegoating" in general, a concept that may help bridge Stark's approach and the "social solidarity" approach.) Stark also points out that the witch hunts claimed less than one in a hundred as many victims as often alleged, that it was not enlightenment figures, but inquisitors and a Jesuit, who first spoke against persecution of "witches," and that early Christians like Augustine thought belief in witches was pure superstition.
Finally, Stark shows how Christians put an end to slavery, beginning in the "Dark Ages." His discussion of this subject is more complete and detailed than any I have read. As with his treatment of science, he draws from a wide array of sources, and gives facts and figures when possible. (How much England paid to free the slaves, the percent of abolitionists who were pastors, and so on.) Along the way, Stark takes his favorite hobby-horses in the sociology of science out for a handsome trot across the landscape.
Finally, let me offer a rebuttal to recent critism. The previous reviewer complains of Stark's many errors. Unfortunately, the only example he gives (calling the Dao Dejing by the name of its author, Lao Zi) is not a mistake. I have a copy of the book on my shelf in Chinese with just that title; both titles are now used. Calling a philosophy book by the name of its author was standard in ancient China: the Zhuang Zi, Xun Zi, or Mencius.
Another critic (who may or may not have read the rest of the book) rants angrily against Stark's attempt to set the relationship between Christianity and persecution of witches in a more context. She calls it "the dumbest thing I ever heard." But contrary to what she seems to think, Stark does NOT say witches worship the devil, rather: "the concept of satanism was deduced by leading Church intellectuals." The critic also suggests we ask a modern witch. Good idea. Neo-pagan historian Jenny Gibbons has written an on-line article that admits, with embarrassment at such sensationalism in the New Age community, many of the very points Stark makes.
The "militant skeptic" below gives a fairer review, and may have caught Stark out in a minor error or two on a periferal subject. (I haven't read Libanios.) But I can find such micro-flubs in most books, even my own. In a book of this scope and detail, that is hardly reason to grade such a sweeping, and empirically tested, argument down. Stark often gets big facts I am aware of right where many or most writers get them wrong.
Contrary to what some seem to assume, this is not a text of apologetics. I recently saw Stark quoted by a skeptic, assuming he was one of their own. An honest arbitaire, like the Jesuits of Paraguay whose remarkable story Stark tells, may get it from both sides. Don't let niggling criticism dissuade you from reading this brilliant, essential, and deeply enlightening work.
author, Jesus and the Religions of Man