9 May 1877 (independence proclaimed from the Ottoman Empire; independence recognized on 13 July 1878 by the Treaty of Berlin); 26 March 1881 (kingdom proclaimed); 30 December 1947 (republic proclaimed)
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)
28 November 1975 (independence proclaimed from Portugal); note - 20 May 2002 is the official date of international recognition of Timor-Leste's independence from Indonesia
... 3 March 1284 (enactment of the Statute of Rhuddlan uniting England and Wales); 1536 (Act of Union formally incorporates England and Wales); 1 May 1707 (Acts of Union formally unite England and ...
22 May 1990 (Republic of Yemen was established with the merger of the Yemen Arab Republic [Yemen (Sanaa) or North Yemen] and the Marxist-dominated People's Democratic Republic of Yemen [Yemen ...
... April 1979 (Islamic Republic of Iran proclaimed); notable earlier dates: ca. 625 B.C. (unification of Iran under the Medes); ca. A.D. 1501 (Iran reunified under the Safavids); 12 December 1925 (modern Iran ...