The Reason Why The Euro Was Created, In One Chart

With Italy's new government once again - if coyly for the time being - bringing up the thorny issue of currency redenomination within the Eurozone, and by implication the failure of the euro and its reversion back to its constituent currencies, we thought it would be a good idea to remind readers why the euro exists in the first place.

The briefest possible answer: to make sure the Deutsche Mark does not.