I feel like this question is a bit leading, as many historical religious-based conflicts arose from other problems than religion, though religion was used as justification for violence in many cases. It's hard to determine what was actually religious-based violence and what was conflict with religious overtones.

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. Alternatively, questions of this type can be directed to more appropriate subreddits, such as /r/history or /r/askhistory.