1.   The euro is now circulating to surprising enthusiasm.

2.   Countries have up to a two-month grace period during which the euro will circulate alongside national currencies.

3.   Euros will circulate alongside national currencies for a period of between four weeks and two months, depending on the country.

4.   Euros will circulate alongside national currencies for a period of between one and two months, depending on the country.

5.   Initially, the euro will circulate alongside national currencies, which will be phased out by mid-February.

6.   Initially, the euro will circulate alongside national currencies, to be phased out by the end of February at the latest.

7.   The euro will circulate freely in the Cuban resort city of Varadero staz announced Monday.