What is the cause of extinction of most civilizations of the past? Is it usually a prolonged failure that could have been avoided or a sudden traumatic event?

by [deleted]
caffarelli

Sorry, we don't allow throughout history questions. These tend to produce threads which are collections of trivia, not the in-depth discussions about a particular topic we're looking for. If you have a specific question about a historical event or period or person, please feel free to re-compose your question and submit it again.