Constituent Assembly
In 1984, the European Parliament called for an assembly authorised to establish a Constitution for the EU. Under the leadership of Altiero Spinelli, the first draft constitution was produced.
There is a clear link between this initiative and the Convention on the Future of Europe , which prepared the rejected 2004 EU Constitution, which in turn formed the framework for the 2007 Lisbon Treaty, which entered into force 1 December 2009.