How exactly do you quantify this? How do you define these terms? "X has been invaded Y times and it was successful Z times"? History and historical events aren't something you can reduce to models and data, everything is contingent.

It's important to try and understand every event in its own context, and while similarities can exist, the human brain is remarkably good at seeing patterns everywhere even they don't exist.

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, you may PM /u/caffarelli to have your question considered for an upcoming Tuesday Trivia thread.