Dissolution of Czechoslovakia
The Dissolution of Czechoslovakia (, ), which took effect on 1 January 1993, was an event that saw the self-determined split of the federal state of Czechoslovakia into the Czech Republic and Slovakia, entities that had arisen before as the "Czech Socialist Republic" and the "Slovak Socialist Republic" in 1969 within the framework of a federal republic.
First Czechoslovak Republic
The First Czechoslovak Republic (, ) was the Czechoslovak state that existed from 1918 to 1938. The state was commonly called Czechoslovakia (Czech and ). It was composed of Bohemia, Moravia, Czech Silesia, Slovakia and Subcarpathian Ruthenia.