United state dating members
The Republic of South Sudan formally seceded from Sudan on 9 July 2011 as a result of an internationally monitored referendum held in January 2011, and was admitted as a new Member State by the United Nations General Assembly on 14 July 2011.
Tanganyika was a Member of the United Nations from 14 December 1961 and Zanzibar was a Member from 16 December 1963.
Following the ratification on 26 April 1964 of Articles of Union between Tanganyika and Zanzibar, the United Republic of Tanganyika and Zanzibar continued as a single Member, changing its name to the United Republic of Tanzania on 1 November 1964.
Yemen was admitted to membership in the United Nations on 30 September 1947 and Democratic Yemen on 14 December 1967.
On 13 October 1961, Syria, having resumed its status as an independent State, resumed its separate membership in the United Nations.
On 2 September 1971, the United Arab Republic changed its name to the Arab Republic of Egypt.
The Republic of Bosnia and Herzegovina was admitted as a Member of the United Nations by General Assembly resolution A/RES/46/237 of .
The Republic of Slovenia was admitted as a Member of the United Nations by General Assembly resolution A/RES/46/236 of .
On 16 September 1963, its name was changed to Malaysia, following the admission to the new federation of Singapore, Sabah (North Borneo) and Sarawak.
The Federal Republic of Germany and the German Democratic Republic were admitted to membership in the United Nations on 18 September 1973.
Through the accession of the German Democratic Republic to the Federal Republic of Germany, effective from 3 October 1990, the two German States united to form one sovereign State.
In a letter dated 10 December 1992, its Permanent Representative informed the Secretary-General that the Czech and Slovak Federal Republic would cease to exist on 31 December 1992 and that the Czech Republic and the Slovak Republic, as successor States, would apply for membership in the United Nations.
Following the receipt of their application, the Security Council, on 8 January 1993, recommended to the General Assembly that the Czech Republic and the Slovak Republic be both admitted to United Nations membership.