I have been told by 2 different people, with no sources, that chivalry arose from the flood of men coming back from the Crusades suffering from what we would now classify as PTSD. Is there any truth to this? Would the same apply to other honor codes around the world like Bushido?
Hi there, not to discourage further comment on this topic (the origins of "chivalry" are interesting), but there have been quite a few threads about PTSD in the premodern world. These may be of interest for you as you wait for more comments: