So hear is the big question what if Athens had won the Peloponnesian War? According to Thucydides there were plenty of times were they almost did but what would have happened if they actually succeeded?
What if Tokugawa Ieyasu after his rise to the Shogunate converted to Christanity. What would that do with the ties between Europe and Japan. Also how would Japan's population and various Damiyos deal with a pro-christian shogun?