Portal:European Union/History of treaties

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            S: signing       F: entry into force       T: termination
Amendments.svg
    S: 8 April 1965
F: 1 July 1967
T: 1 May 1999
Treaty establishing a Single Council and a Single Commission of the European Communities ("Merger Treaty")
S: 17 February 1986
F: 1 July 1987

Single European Act
  S: 2 October 1997
F: 1 May 1999

Treaty of Amsterdam amending the Treaty on European Union, the Treaties establishing the European Communities and certain related acts
S: 26 February 2001
F: 1 February 2003

Treaty of Nice amending the Treaty on European Union, the Treaties establishing the European Communities and certain related acts
S: 13 December 2007
F: 1 December 2009

Treaty of Lisbon amending the Treaty on European Union and the Treaty establishing the European Community
Founding treaties.svg
        S: 7 February 1992  F: 1 November 1993Treaty on European Union (TEU)
        Original text Consolidated text Consolidated text Consolidated text
               
  S: 25 March 1957
F: 1 January 1958
Treaty establishing the European Economic Community (TEEC)
Treaty establishing the European Community (TEC) Treaty on the Functioning of the European Union (TFEU)
  Original text Consolidated text Consolidated text Consolidated text Consolidated text Consolidated text Consolidated text
               
  S: 25 March 1957  F: 1 January 1958 Treaty establishing the European Atomic Energy Community (TEAEC)
  Original text Consolidated text Consolidated text Consolidated text Consolidated text Consolidated text Consolidated text
               
S: 18 April 1951  F: 23 July 1952 Treaty establishing the European Coal and Steel Community (TECSC) T: 23 July 2002    
Original text Consolidated text Consolidated text Consolidated text Consolidated text    
               
Structural changes.svg         Three pillars of the European Union:  
European Communities:  
European Atomic Energy Community (EURATOM)
European Coal and Steel Community (ECSC)   European Union (EU)
  European Economic Community (EEC) European Community (EC)
      Justice and Home Affairs (JHA)  
  Police and Judicial Co-operation in Criminal Matters (PJCC)
Common Foreign and Security Policy (CFSP)