How the Irish Saved Civilization

The most interesting part of our discussion of Cahill's book was the concept or definition of "nonfiction" and "fiction". How do we believe what the author tells us? Are the footnotes enough? How much of his beliefs are given as FACT?
Is this interest in fact or fiction a product of the memoir debacle seen lately in the media? Hmmmmmm.
Most of us liked reading about Irish Catholic history. I will certainly want to know more about St. Brigid.