What is the oldest eon?

Related questions

1. What is the shortest Eon?
2. Is Eoin Irish for John?
3. What is the difference between Aeon and Eon?
4. What period is the earth in now?
5. What does the name EON mean?
6. Which EON has the most life?
7. Why did Rome not conquer Scotland?
8. What is the oldest era?
9. What does the name Eion mean?
10. What EON do we currently live in?

Tags

1. #dated
2. #found
3. #known
4. #earth
5. #million
6. #interval
7. #hadean
8. #dating
9. #canada
10. #billion
11. #exception
12. #oldest
13. #northwest
14. #territories
15. #rocks
16. #record
17. #years