The sovereign country of Czechoslovakia (now Czech Republic & Slovakia) emerged on Oct. 28, 1918, after the collapse of the Austro-Hungarian Empire during World War I. On that day, the Czechoslovak National Council in Prague proclaimed its independence.
Referred to as the First Republic it existed from 1918 to 1938 when it ceded Sudetenland to Germany as part of the Munich Agreement.
The second republic lasted only half a year until the rest of Czechoslovakia was occupied by Germany in 1939.
Pictured in the feature photo is the 28. rijen 1918 rally of the people on Wenceslas Square in Prague.
Source: Wikipedia
Czech and Slovak Educational Center and Cultural Museum 