Has anyone ever won all 4 Grand Slams in one year?

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1. #court
2. #budge
3. #calendar
4. #season
5. #history
6. #margaret
7. #maureen
8. #grand
9. #times
10. #twice
11. #tennis
12. #steffi
13. #singles
14. #achieved
15. #laver
16. #connolly
17. #nobody
18. #since