Why are PhD called doctors?

Related questions

1. Is PhD higher than doctorate?
2. Is a professor higher than a doctor?
3. Do doctors need PhD?
4. How many years of course is PhD?
5. How expensive is a PhD UK?
6. Are PhDs paid in UK?
7. Do you call a PhD a doctor or professor?
8. Does PhD give you Dr title?
9. Can I legally call myself a doctor?
10. Should I use DR or PhD?

Tags

1. #degree
2. #university
3. #title
4. #meant
5. #latin
6. #teacher
7. #history
8. #applied
9. #usage
10. #doctorate
11. #academic
12. #highest
13. #originally
14. #distinguished
15. #someone
16. #holds
17. #anyone
18. #about
19. #doctor
20. #field
21. #modern