1 January 1993 (Czechoslovakia split into the Czech Republic and Slovakia); note - although 1 January is the day the Czech Republic came into being, the Czechs generally consider 28 October 1918, the ...
16 December 1971 (from West Pakistan); note - 26 March 1971 is the date of independence from West Pakistan, 16 December 1971 is known as Victory Day and commemorates the official creation of the state of Bangladesh
... and entered into force on 1 January 1958, created the European Economic Community and the European Atomic Energy Community; the Treaty of Lisbon, which was signed on 13 December 2007 and entered ...
16 November 1918 (republic proclaimed); notable earlier dates: 25 December 1000 (crowning of King STEPHEN I, traditional founding date); 30 March 1867 (Austro-Hungarian dual monarchy established)