The Dissolution of Czechoslovakia (Czech: Zánik Československa), (Slovak: Rozdelenie Česko-Slovenska)), 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 which had arisen before as the Czech Socialist Republic and the Slovak Socialist Republic in 1969 within the framework of Czechoslovak federalisation.