Editing Maastricht Treaty (section)

==Amending Treaties==
In establishing the European Union the Maastricht Treaty amended the treaties that had established the European Communities in the 1950s. Following the EU accessions of Austria, Finland, and Sweden, it was in turn amended by the treaties of [[Treaty of Amsterdam|Amsterdam]] (1997), and [[Treaty of Nice|Nice]] (2001). Following the accession of a further twelve states, ten from the former [[Eastern Bloc]] – Bulgaria, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia and Slovenia – plus Cyprus and Malta, and an aborted [[Treaty establishing a Constitution for Europe|Treaty on a European Constitution]], the Treaty on European Union and the Treaty Establishing the European Community (TEC) were more comprehensively revisited. The 2007 [[Treaty of Lisbon]] amends both again and renames the TEC as the [[Treaty on the Functioning of the European Union]] (TFEU).