What is the deadliest day in history?

Related questions

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4. How many SS soldiers were executed?
5. What is the most deadly weapon in the world?
6. How many Japanese soldiers survived ww2?
7. Who paid for ww2?
8. What was the deadliest day in ww2?
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Tags

1. #americans
2. #antietam
3. #history
4. #military
5. #battles
6. #bloodiest
7. #battle
8. #thousand
9. #remembered
10. #bloodletting
11. #single
12. #deadliest