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.
China–Czech Republic relations
People's Republic of China–Czech Republic relations began on 6 October 1949 when the Czech Republic was a federal element of Czechoslovakia. The Czech Republic became an independent country on 1 January 1993, the Chinese government extended diplomatic relations. At the dissolution of Czechoslovakia in 1993, government officials from both sides signed and exchanged notes recognizing the treaties and agreements signed between China and the former Czechoslovakia Federal Republic continues to be upheld and binding.