To begin with, the book should probably be titled "Atheist Delusions About Ancient History." This book is not so much a debate with our Fashionable New Atheists (Dawkins, Harris, Dennett, and Hitchens -- "The Gang of Four?? :-) ) It is more a long, and endlessly fascinating, revisit of Ancient History.
It may not be surprising to learn that there are at least two main narratives commonly provided for "The History of Western Civilization." Here they are (very compressed):
Narrative #1: The Christian Version. "The world was lost in pagan immorality and darkness; man enslaved man and man dominated woman. Then, with the Birth of Christ, came the Divine Light, and the world was forever transformed. The barbarian, knuckle-dragging rapists of Europe were baptised and brought to Jesus, and the world got much, much better. Even today, there is no other known source of European civilization and we reject it at our peril." One of the most popular novels of all time, "Quo Vadis," is in this narrative tradition.
Narrative #2: The Modernist Version. "We had the Glory of Greece and the Splendor of Rome, but alas a bunch of superstitious people completely replaced the glories of Paganism with the knuckle-dragging ignorance of Blind Faith. The result was the Dark Ages, which only ended when Heroic Forces restored the classics of Greece to a benighted Europe. Then came the Enlightenment, and Democracy, and all manner of good things, once the Europeans cast off the shackles of Faith." Arthur C. Clarke and many other modern thinkers followed this narrative.
Whether you approve of my "summaries" or not, the point is that they are both tremendous oversimplifications and they are both therefore silly. If you want to be a propagandist, OK, take one of those simple-minded narratives. But if you really want to understand the history of Western Civilization, you need much more information.
One myth which has been repeated endlessly is that "Christian mobs destroyed the Library of Alexandria." This is completely false. In the first place, there were two libraries, and there have been a number of "suspects" beginning with Caesar, but nobody really knows what happened. (A man named Parsons wrote a whole book on the subject.) Another myth is that Christianity somehow destroyed the original Greek manuscripts of Aristotle, and that we had to get them back from the Arabs, in Arabic. If this myth were true, how could we possibly have all of Aristotle in the original Greek today? (The original Greek manuscripts were preserved in Byzantium.)
Things like this make the book under review invaluable, and there is one larger discussion I would like to share with you. It concerns Galileo, and the Myth of Galileo -- apparently launched by the great hypocrite Brecht. Basically, all you need to know is that "everything you think you know about Galileo is false," most particularly the idea that Galileo and other modern astronomers were engaged in some sort of running war with the dogmatic Catholic Church. Not at all. In the end, Galileo, Kepler, and Newton were engaged in a much larger and more difficult battle: they were overturning the dead hand of Aristotle, which had stifled European science for thousands of years. Newton's final victory was the collapse of Hellenistic "science" --- such as it was.
Well, I've either stirred up your interest, or I haven't! Back to Beethoven Op. 127. :-)