Answer:
Early in his reign, he was very brutal and felt quite guilty of how he behaved. He became a Buddhist, and practiced ahimsa (not hurting other living things).
The Congress of Vienna was considered a success because it was the first time in history that on a continental scale national representatives came together to formulate treaties, instead of relying mostly on messages from the several capitals. The Congress of Vienna was a conference headed by the monarchs of Austria and it was to provide a long-term peace plan for the superpowers of Europe and to have stability in Europe.
