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.
Protectorate of Bohemia and Moravia
On 10 October 1938, when Czechoslovakia was forced to accept the terms of the Munich Agreement, Germany incorporated the Sudetenland, on the Czechoslovak border with Germany and Austria proper, with its majority of ethnic German inhabitants, directly into the Reich. Five months later, when the Slovak Diet declared the independence of Slovakia, Hitler summoned Czechoslovak President Emil Hácha to Berlin and intimidated him into accepting the German occupation of the Czech rump state and its reorganisation as a German protectorate.