Austria
The Treaty of Saint-Germain of 1919 (for Hungary the Treaty of Trianon of 1920) confirmed and consolidated the new order of Central Europe which to a great extent had been established in November 1918, creating new states and altering others. The German-speaking parts of Austria which had been part of Austria-Hungary were reduced to a rump state named The Republic of German-Austria (German: "Republik Deutschösterreich"). The desire for "Anschluss" (annexation of Austria to Germany) was a popular opinion shared by all social circles in both Austria and Germany. On 12 November, German-Austria was declared a republic, and named Social Democrat Karl Renner as provisional chancellor. On the same day it drafted a provisional constitution that stated that "German-Austria is a democratic republic" (Article 1) and "German-Austria is an integral part of the German reich" (Article 2). The Treaty of Saint Germain and the Treaty of Versailles explicitly forbid union between Austria and Germany. The treaties also forced German-Austria to rename itself as "Republic of Austria" which consequently led to the first Austrian Republic.
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.