Why is Batman called the world's greatest detective?

Related questions

1. How does the Batman movies go in order?
2. What is the Joker's real name in Persona 5?
3. Did Harvey Dent die?
4. Does Lucius Fox know Bruce Wayne is Batman?
5. Why did the Joker switch the addresses?
6. Who kills Deadshot?
7. Who killed Ra's al Ghul Batman or arrow?
8. Should I watch Batman Begins Before Dark Knight?
9. Did Ra's al Ghul die in Gotham?
10. Why did Robin become Nightwing?

Tags

1. #originally
2. #after
3. #epithets
4. #crusader
5. #caped
6. #knight
7. #title
8. #popular
9. #referred
10. #world
11. #comic
12. #gained
13. #following
14. #detective
15. #character
16. #became
17. #named
18. #batman
19. #introduction
20. #greatest