-
1951
treaty of Paris, CECA -
1957
signature of the traties of Rome CEE. -
1965
signature of the merger treaty: common institutions. -
1973
accession of the UK, Ireland and Denmark CE-9. -
1981
accession of Greece CE-10. -
1986
accession of Spain and Portugal CE-12. -
1992
signature of the Maastricht treaty, reunification of Germany. -
1995
accession of Austria, Sweden and Finland UE-15 -
1997
signature of the treaty of Amsterdam. -
2001
signature of the treaty of Nizza -
2002
introduction of the Euro. -
2004
accession of Poland, Hungary, Slovenia, Czech Republic, Slovakia, Lettonia, Estonia, Lithuania, Cyprus and Malta UE-25 -
2007
accession of Bulgaria and Romania UE-27 -
2007
signature of the treaty of Lisbon -
2013
accession of Croatia UE-28 -
2020
UK exit from UE.