Analysis of information sources in references of the Wikipedia article "Council of Europe" in English language version.
English and French are the official languages of the Council of Europe.
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(help)Greece and Turkey became the 11th and 12th member State of the Council of Europe on 9 August 1949.
Iceland became the 13th member State of the Council of Europe on 7 March 1950.
On 5 May 1949, at St James's Palace, London, the Foreign Ministers of Belgium, Denmark, France, Ireland, Italy, Luxembourg, the Netherlands, Norway, Sweden and the United Kingdom signed the Treaty establishing the Council of Europe.