-
1951
Treaty of Paris -
1957
Treaties of Rome -
1965
Signature of fusion treaty -
1973
Accession of UK, Denmark and Ireland -
1981
Accession of Greece -
1986
Accession of Spanish and Portugal -
1992
Treaty of Maastricht -
1995
Accession of austria, sweden and finland -
1997
Treaty of Amsterdam -
2001
Treaty of Nizza -
2002
Introduction of Euro -
2004
Costitutional treaty -
2007
Treaty of Lisbona -
2007
Accession of Bulgaria and romania -
2013
Accession of Croatia -
2020
The UK left the UE