In 1897, the Austrian Empire was dissolved, and Austria-Hungary was formed, with separate governments in Vienna and Busapest. After the First World War, Burgenland was named Deutsch-Westungarn (German-West Hungary) in the 1919 Treaty of St. Germain and the Treaty of Trianon and was awarded to Austria in 1919. Since 1921, the town has been part of the newly founded State of Burgenland. In December 2001, the National Park Neusiedlersee was named a UNESCO World Heritage Site
