Why Vatican City is not a member of UN?

Related questions

1. Who is not a UN member?
2. Does the WTO promote free trade?
3. What are the benefits of being a member of the WTO?
4. Why is WTO good?
5. What does a trade analyst do?
6. Why is the WTO good?
7. Is North Korea in UN?
8. Who collects the tariff?
9. Which country is not in WTO?
10. Who runs UN?

Tags

1. #religious
2. #world
3. #country
4. #nations
5. #valid
6. #based
7. #should
8. #state
9. #because
10. #member
11. #faith
12. #vatican
13. #allow
14. #believers
15. #require
16. #unique
17. #obligatory
18. #political
19. #system
20. #united
21. #whose