
The Cathars: The Most Successful Heresy of the Middle Ages



The Saint and the Sultan: The Crusades, Islam, and Francis of Assisi's Mission of Peace
amazon.com
I came to a clear conclusion: by and large, early Christians were weird and were dangerous to many, and yet clearly some found this religion attractive and compelling.
Nijay K. Gupta • Strange Religion: How the First Christians Were Weird, Dangerous, and Compelling
Strange Religion: How the First Christians Were Weird, Dangerous, and Compelling
amazon.com