In 2005, as part of the celebrations held to mark the 50th anniversary of the European flag, the Council of Europe answers questions about the origins, the designer, the adoption and the symbolism of the blue flag with 12 gold stars.
Source:European flag - questions and answers. 50th anniversary of the European flag. [ON-LINE]. [s.l.]: Council of Europe, [21.02.2006]. Available on http://www.coe.int/T/E/Com/Files/events/2005-12-drapeau/questions_reponses.asp.