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In total 3,497 people died in the attacks on 11 September 2001. 2,740 Americans Died in the September 11 attacks.
The September 11th attacks occurred on September 11, 2001.
The 9/11 attacks were on September 11, 2001.
Al Qaeda, a terrorist group, has claimed responsibility for the September 11 attacks.
Tuesday, September 11, 2001 was the day of the attacks.