June 9, 1815
On June 9, 1815, the Congress of Vienna signed its final act, which played a crucial role in establishing a lasting peace and redrawing the map of Europe. As part of the agreement, France was restored to its 1792 borders, while the Austrian Netherlands, Dutch Republic, and former Prince-Bishopric of Liège were unified to form the United Kingdom of the Netherlands. The German Confederation (Deutscher Bund) was also created as a replacement for the Holy Roman Empire, which had been dissolved. Additionally, Prussia gained significant territories, Austria was compensated with Lombardy and Venetia, regained control of Tyrol and Salzburg, and various Italian states were resolved. Poland was reconstructed as an independent kingdom, although it remained under Russian influence. Lastly, the Scandinavian borders were redrawn, and Norway entered into a union with Sweden.