Hilaire Belloc 
Europe and the Faith 

In this book, pivotal to all his historical insights, Belloc answers the question: What made Europe? He shows it was not the barbarians nor the Protestant Reformation, but the Catholic Faith that made Europe (and the worldwide civilisation produced by Europe). Protestantism gravely wounded this our civilisation, and only the Catholic Faith can rejuvenate it. It must return to that Faith or perish! This is a tremendous eye-opener on where we are today and where we must go from here! (Goodreads)