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.
Slovakia
The end of Communist rule in Czechoslovakia in 1989, during the peaceful Velvet Revolution, was followed once again by the country's dissolution, this time into two successor states. The word "socialist" was dropped in the names of the two republics, i.e. the Slovak Socialist Republic was renamed Slovak Republic. In July 17, 1992 Slovakia, led by Prime Minister Vladimír Mečiar, declared itself a sovereign state, meaning that its laws took precedence over those of the federal government. Throughout the autumn of 1992, Mečiar and Czech Prime Minister Václav Klaus negotiated the details for disbanding the federation. In November the federal parliament voted to dissolve the country officially on December 31, 1992.