Somalia
1 July 1960 (from a merger of British Somaliland that became
independent from the UK on 26 June 1960 and Italian Somaliland that
became independent from the Italian-administered UN trusteeship on 1
July 1960 to form the Somali Republic)
South Africa
31 May 1910 (Union of South Africa formed from four
British colonies: Cape Colony, Natal, Transvaal, and Orange Free
State); 31 May 1961 (republic declared); 27 April 1994 (majority
rule)
Spain
1492; the Iberian peninsula was characterized by a variety of
independent kingdoms prior to the Muslim occupation that began in
the early 8th century A.D. and lasted nearly seven centuries; the
small Christian redoubts of the north began the reconquest almost
immediately, culminating in the seizure of Granada in 1492; this
event completed the unification of several kingdoms and is
traditionally considered the forging of present-day Spain
Sri Lanka
4 February 1948 (from the UK)
Sudan
1 January 1956 (from Egypt and the UK)
Suriname
25 November 1975 (from the Netherlands)
Svalbard
none (territory of Norway)
Swaziland
6 September 1968 (from the UK)
Sweden
6 June 1523 (Gustav VASA elected king)
Switzerland
1 August 1291 (founding of the Swiss Confederation)