Why is Wikipedia always first on Google?

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Tags

1. #wikipedia
2. #pages
3. #arrange
4. #reasons
5. #results
6. #sought
7. #often
8. #places
9. #seems
10. #google
11. #first
12. #known
13. #those
14. #always
15. #people
16. #found
17. #articles
18. #wonder
19. #sources
20. #place