What major event happened on September 11, 2001 in the United States?

Start playing free

  1. A major hurricane hit Florida
  2. Terrorists attacked the United States
  3. The stock market crashed

🔒 The answer is for AhaBulb members. Members see the answer, why it's right and the official sources for every card of Stuff Every US Citizen Should Know, plus timed practice exams.

The first 50 cards of every test are free to play.

Play the free cards See membership

Like this card?
Play the game

References

  1. USCIS M-1778 (09/25), 128 Civics Questions and Answers (2025 version) www.uscis.gov/sites/default/files/document/questions-and-answers/2025-Civics-Test-128-Questions-and-Answers.pdf Checked 2026-10-09.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game