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.
Origins of Czechoslovakia
Both Czechs and Slovaks struggled against a powerful neighbouring people; Germans in the case of the Czechs, Hungarians in the case of the Slovaks (see History of the Czech Republic and History of Slovakia). Contacts between the Czechs and Slovaks arose in the late fourteenth century, when Slovaks started to study at the University of Prague; in the fifteenth century, with the campaigns of the Czech Hussite armies to Slovakia; and in the seventeenth century, when Czech Protestants fled to Slovakia. Between the fifteenth and eighteenth centuries, some educated Slovaks used written Czech as well as Slovak and Latin (see History of the Slovak language). The Czechs and Slovaks were also formally united in 1436–1439, 1453–1457, and 1490–1918, when Hungary (which included Slovakia), Bohemia and other Central European states were ruled by the same kings.