The Napoleonic Wars brought changes to Europe.
Firstly, since Napoleon had brought most of Western Europe under his rule, he managed to introduce his institutional legacies or codes of law, related to civil law, to all countries under his domain. This contributed to stablishing democracies around the world.
Also, the blockage against Britain, that prevented that country from trading with Europe, triggered a contraction on Europe's economy and gave power to Britain, that became the greatest power.
Moreover, the Napoleonic Wars ended the 800-year independence of Venice.
Another consequence is the emergement of independent movements and wars in America and Europe due to the weakening of the Spanish Empire affected by the expansion of the French Empire. This was ultimately one of the reasons why the Spanish Empire fall.
Among others, these are consequences that emerged from the Napoleonic Wars.
