The rise of Hideyoshi from sandal bearer to dictator of Japan was phenomenal. After hundreds of year of civil war, he, without any sense of irony, brought the country to unified peace with remarkably little bloodshed.  Well, at least a lot less than what one might expect if Nobunaga had lived long enough to make it happen.  Not only did he unify the Daimyo, he set about reorganising the process of taxation and commerce for the whole realm.