Most of you got this one wrong (don't worry, the #EPSO exams are still months away, we all have time to study!) The Treaty of Nice was signed in Nice (France) on 26 February 2001. It entered into force on 1 February 2003. https://www.europarl.europa.eu/about-parliament/en/in-the-past/the-parliament-and-the-treaties/treaty-of-nice#EPSOprep