poland signed the treaty of accession to become part of the eu on 16 april 2003.
when did poland sign the treaty of accession to become part of the eu?
16 april 2003
at the luxembourg summit in 1997, the eu accepted the commission's opinion to invite poland, czech republic, hungary, slovenia, estonia and cyprus to start talks on their accession to the eu. the negotiation process started on 31 march 1998. poland finished the accession negotiations in december 2002. then, the accession treaty was signed in athens on 16 april 2003 (treaty of accession 2003). after the ratification of that treaty in the 2003 polish european union membership referendum, poland and other 9 countries became the members of eu on 1 may 2004.





















































section::::impact.
2004 enlargement of the european union
bullet::::- october 1 – treaty of raalte: william iii, prince of orange is no longer stadtholder of overijssel.





















































bullet::::- october 3 – french troops occupy mardyck.





















































bullet::::- november 6 – brandenburg and poland sign the treaty of bromberg.





















































bullet::::- november 10 – christina, former queen of sweden, has gian rinaldo monaldeschi killed in her presence, at the palace of fontainebleau.





















































bullet::::- december 27 – the flushing remonstrance is signed in new amsterdam, at the site of the future (1862) flushing town hall in new york.





















































section::::events.:date unknown.





















































bullet::::- the accademia del cimento is founded in florence, italy.
1657