Czechoslovakia joined the UN as an original member on 24 October 1945, with its name changed to the Czech and Slovak Federative Republic on 20 April 1990. Upon the imminent dissolution of Czechoslovakia, in a letter dated 10 December 1992, its Permanent Representative informed the United Nations Secretary-General that the Czech and Slovak Federative Republic would cease to exist on 31 December 1992 and that the Czech Republic and Slovakia, as successor states, would apply for membership in the UN. Neither state sought sole successor state status. Both states were readmitted to the UN on 19 January 1993.