The major outcome of the Congress of Vienna in 1815 was the restoration of political order and balance of power in Europe after the upheaval of the Napoleonic Wars. Attended by representatives from major powers, including Austria, Prussia, Russia, and Britain, the Congress aimed to redraw the map of Europe and ensure lasting peace. It resulted in the re-establishment of monarchies and territorial adjustments that contained revolutionary movements. The principles of legitimacy and intervention were established, leading to nearly a century of relative stability in Europe, though it also set the stage for future conflicts and nationalist movements.