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).
Austrians
The end of World War II in 1945 saw the re-establishment of an independent Austria, although the Allied Powers remained in occupation until 1955, when the Austrian State Treaty between Austria and them was signed to end occupation and to regain Austrian sovereignty.
Immediately after 1945 the majority of Austrians still saw themselves as Germans, as a broader Austrian national identity took time to develop. In a 1956 survey, 46% of Austrians still considered themselves to be Germans. Another survey carried out in 1964 revealed that only 15% of Austrians still considered themselves to be Germans.