Yes, it is the 18th of June, the anniversary of the climax of the Napoleonic Wars/ But what impact did these wars have? First thing that springs to mind about Napoleon is a ranting madman, intent on destruction. But was this really the case?
Many other character traits are Napoleon's other than lunatic. His defeat of all twelve Italian city states in six months, the conuering of Prussia, the initially brilliant Spanish Peninsula Campaign, and the complete obliteration of Austria.
War aside, Napoleon and a group of his friends invented the metric system, the most efficient and reliable numerical sytem in the world, used by all but ten of the worlds sovereign states. The introduction of healthcare and education to France and parts of his Empire, plus the promotion through skill, not family, policy , (exemplified in his saying, "In every soldiers haversack, there is a Field Marshal's baton,").
Undoubtedly, bad deeds were comitted under his rule, although not on the scale of the Spanish in the Americas, the British to Boers in South Africa, and definitley not on the level of the Nazis.
All in all, I think if he had toned down the eccentricity part, he would have made a good ruler.