History of Austria
Austria was dominated by the House of Habsburg and House of Habsburg-Lorraine ("Haus Österreich") from 1273 to 1918. In 1808, when Emperor Francis II of Austria dissolved the Holy Roman Empire, Austria became the Austrian Empire, and was also part of the German Confederation until the Austro-Prussian War of 1866. In 1867, Austria formed a dual monarchy with Hungary: the Austro-Hungarian Empire (1867–1918). When this empire collapsed after the end of World War I in 1918, Austria was reduced to the main, mostly German-speaking areas of the empire (its current frontiers), and adopted the name The Republic of German-Austria. However the union and name were forbidden by the Allies at the Treaty of Versailles. This led to the creation of the First Austrian Republic (1918-1933).
History of Austria
The First World War effectively ended for Austria on 3 November 1918, when the defeated army signed the Armistice of Villa Giusti at Padua following the Battle of Vittorio Veneto. (Technically this applied to Austria-Hungary, but Hungary had withdrawn from the conflict on 31 October 1918, and most other states within the empire, such as Czechoslovakia and the South Slavs, had also done so.) Austria was forced to cede all territory occupied since 1914, plus a considerable amount of other territory, and the allies were given access to Austria. The empire was thus dissolved.