What is the newest capital city?

Related questions

1. Which country changed its capital name?
2. Why did Kazakhstan change its capital?
3. What is the old capital of Kazakhstan?
4. Which country renamed its capital?
5. Which country changed its capital in 1997?
6. Was YORK ever the capital of England?
7. Is there war in Kazakhstan?
8. Which country changed its capital name recently?
9. Is China a sovereign state?
10. Which cities have never served as capital of Pakistan?

Tags

1. #south
2. #independence
3. #world
4. #months
5. #newest
6. #capital
7. #declaration
8. #republic
9. #almost
10. #after
11. #nation
12. #sudan
13. #became