One doesn’t really celebrate a currency. Besides, we have work to do. We have had a dinner and we will have a conference in Sintra in Portugal in June to discuss what has worked and what hasn’t worked with a broad range of participants. What hasn’t worked?
Since it’s time to reflect on the past 20 years, I would say the euro as a currency has been a huge success: it’s stable, inflation has been considerably lower in the last 20 years than in the 2/8  BIS central bankers' speeches  decades before that, and this has supported purchasing power, it has supported the purchasing power of Europeans. Really?