What is treaty of Vienna .
in 1815 , the representatives of European powers Britain,Russia, Prussia and Austria wanted to establish long lasting peace and stability after they defeated Napoleon. thus they drew up the treaty of Vienna of 1815 with the intension of undoing most of the changes brought about during the Napoleonic wars and creating a new conservative order in Europe
The Treaty of Vienna was a peace treaty signed on 30 October 1864 in Vienna between the Austrian Empire, the Kingdom of Prussia, and the Kingdom of Denmark.