How many times has a nuke been used?

Related questions

1. What would happen if a nuke went off in space?
2. Can a nuclear bomb cause a tsunami?
3. How dangerous is a nuclear bomb?
4. Why was the Tsar Bomba created?
5. How does plutonium explode?
6. How big is Tsar Bomba blast radius?
7. What happens if a nuke goes off underwater?
8. Why are atomic bombs so powerful?
9. Is a hydrogen bomb stronger than a nuke?
10. What would happen if a nuke was detonated in space?

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14. #combat
15. #nagasaki
16. #states
17. #stages
18. #atomic
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20. #hiroshima
21. #second
22. #events