ROMSO Cyprus Knowledge Base

This list presents all the changes in borders, sovereignty over a territory, or independences acquired by States in Europe during the period .

Years 1900
: Out of personal union between Sweden and Norway. It becomes independent.
:
Annexation of Bosnia and Herzegovina by Austria-Hungary.
Independence of Bulgaria from the Ottoman Empire.
: End of the occupation by Austria-Hungary of the Sandjak of Novi Pazar returned to the Ottoman Empire.

Years 1910
Albania's independence from the Ottoman Empire.
: The Treaty of London ends the First Balkan War:
The Ottoman Empire lost all its possessions in the Balkans, with the exception of the territories east of the Enos-Midia line. These territories are divided between Greece, Serbia, Bulgaria and Montenegro; But borders are not defined, which will cause the Second Balkan War.
Albania's independence is definitively recognised.
: The Treaty of Bucharest ends the Second Balkan War:
Bulgaria, defeated, lost part of its territories acquired under the Treaty of London (Macedonia) but retained the Western Thrace. It also gave to Romania the South Dobrudja which belonged to it before the Treaty of London.
Serbia receives northern Macedonia and shares the Sandjak of Novipazar with Montenegro.
Greece receives the South of Macedonia, with Salonica, as well as the islands of the Aegean Sea and Crete, ceded by the Ottoman Empire.
Treaty of Constantinople which defines the Bulgarian-Tottoman border. The Ottoman Empire recovered the cities of Andrinople, Kirk Kilisse and Demotica.
: Treaty of Florence which defines the Albano-Greek border. The Northern Epirus (where a strong Greek minority lives), occupied by the Greeks since the Second Balkan War, is back to Albania.
: Independence of Iceland
and following days: de facto dislocation of Austria-Hungary, the National Committees of the different peoples of the Empire proclaim their independences (Czechs and Slovaks, Poles, Ukrainians) or their union to the neighbouring countries with which they were culturally close (Germans of Austria and Bohemia, Italians, Slovenians, Croats, Serbs, Romanians); Germans and Ukrainians will not be satisfied with the Treaty of Saint-Germain.
Declaration of Independence of Ireland.
Treaty of Versailles, which concluded the First World War.
Poland and Czechoslovakia are created on territories previously German, Austro-Hungarian and Russian.
Germany is losing Alsace-Lorraine to France, the cantons of Eupen and Malmedy to Belgium, the Danish part of Schleswig to Denmark, and the Hlučín region (Haute-Silesia) to Czechoslovakia.
The province of Posnania and the province of Western Prussia are ceded by Germany to Poland, thus separating the