The Treaty of Versailles, signed on June 28, 1919, marks the end of World War I. The Treaty, among several financial clauses and military restrictions, created a number of territorial changes on the map of Europe. Austria-Hungary was split into many parts and certain new countries were born: Austria, Hungary, Bosnia, Slovena and Croatia. Part of Bulgaria gave birth to a new state, Macedonia. The state of Czechoslovakia was now recognized, as well as Serbia and Montenegro united under one country, Yugoslavia. Russia lost control over a part of its territory by the Baltic Sea and so Estonia, Finland, Latvia and Lithuania were created.
How many new countries were created by the Treaty of Versailles? Compare this map to the map of Europe in 1914.