The title of this episode of Communio Santorum is A Glimmer of Reform.
I assume nearly everyone listening to this is a student of history, or—why would you be listening? Some like history in general. Others find a fascination with certain eras or moments of the past. Whatever your interest in history, every student recognizes as time passes, things change. Sometimes that change is merely incidental to the thing changed, a cosmetic difference that does little to the substance. Other change is deep, fundamentally altering the thing changed; and in some cases, doing away with it altogether.
Institutions and beliefs held for long periods can be swept away in a matter of days, while others abide for centuries without being touched.