Dissolution of Czechoslovakia
Since the federalization in 1968, Czechoslovakia had divided citizenship, either of the Czech Socialist Republic or of the Slovak Socialist Republic (the word 'Socialist' was dropped from both names shortly after the Velvet Revolution). This distinction, however, had little effect on the citizen's life. On January 1, 1993, all Czechoslovak citizens automatically became citizens either of the Czech Republic or the Slovak Republic, based on their previous citizenship, permanent residence address, birthplace, family ties, job, and other criteria. Additionally, people had one year's time to claim the other citizenship under certain conditions.
Second Czechoslovak Republic
The Second Czechoslovak Republic (, ), sometimes also called the Czech-Slovak Republic (Czech and ), existed for 169 days, between 30 September 1938 and 15 March 1939. It was composed of Bohemia, Moravia, Silesia and the autonomous regions of Slovakia and Subcarpathian Ruthenia, the latter renamed as of 22 November 1938 as Carpathian Ukraine ("Karpatská Ukrajina" in Czech).