When did Leinster move to the RDS?

Related questions

1. Why is it called the o3 arena?
2. What is RDS in railway?
3. What time does the Luas stop running at night?
4. Where do Saracens train?
5. Is the RDS outside?
6. What road is the RDS on?
7. What does the RDS in Dublin stand for?
8. Is North Dublin safe?
9. Is Dublin Bus state owned?
10. What Luas goes to Dundrum?

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2. #against
3. #played
4. #though
5. #province
6. #september
7. #magners
8. #ballsbridge
9. #official
10. #dublin
11. #after
12. #league
13. #blues
14. #first
15. #heart
16. #cardiff
17. #situated
18. #leinster
19. #edinburgh