Treaty of Lisbon
December 13, 2007 · Jerónimos Monastery, Lisbon
Treaty that reformed the European Union after the failed constitution. In force from 2009, it created a permanent President of the European Council and the Article 50 procedure for leaving the Union.
Key people
Participants
Before and after
- Followed from
- Treaty establishing a Constitution for Europe October 29, 2004
Related events
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020

