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
Since the territory understood by the term 'Austria' underwent drastic changes over time, dealing with a "History of Austria" raises a number of questions, eg., whether it is confined to the current or former Republic of Austria, or extends also to all lands formerly ruled by the rulers of Austria. Furthermore, should an Austrian history include the period 1938–1945, when it nominally did not exist? Of the lands now part of the second Republic of Austria, many were added over time – only two of the nine provinces or "Bundesländer" (Lower Austria and Upper Austria) are strictly 'Austria', while other parts of its former sovereign territory are now part of countries like e.g., Italy, Hungary or the Czech Republic. Accordingly, within Austria there are also regionally and temporally varying affinities to adjacent countries.