When did Estonia start using the euro?

Related questions

1. Does Lithuania use the euro?
2. Do all EU members have to adopt the euro by 2022?
3. Is Estonia in European Union?
4. Is English spoken in Estonia?
5. Is Zimbabwe poor?
6. Does the UK have to adopt the euro in 2022?
7. Should Britain have joined the euro?
8. What currency did Estonia use before the euro?
9. Is Estonia a communist?
10. Is Congo the poorest country in the world?

Tags

1. #adopt
2. #officially
3. #eurozone
4. #target
5. #planned
6. #slovenia
7. #however
8. #estonia
9. #formally
10. #changed
11. #country
12. #apply
13. #originally
14. #criteria
15. #january
16. #commission
17. #european
18. #announced
19. #later