Does Dr have a period after it?

Related questions

1. What does ECT mean?
2. For what purpose do you use periods?
3. Does etc mean end of thinking capacity?
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5. What is etc in English?
6. Why do people use etc?
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Tags

1. #putting
2. #however
3. #known
4. #abbreviations
5. #after
6. #first
7. #mister
8. #distinction
9. #between
10. #american
11. #british
12. #difference
13. #doctor
14. #periods
15. #english
16. #little
17. #letter
18. #written
19. #period
20. #writers