Quick answer (verified 2026-07-08 by CivicFlare):
Official USCIS answer to "What major event happened on September 11, 2001 in the United States?": Terrorists attacked the United States, Terrorists took over two planes and crashed them into the World Trade Center in New York City, Terrorists took over a plane and crashed into the Pentagon in Arlington, Virginia, Terrorists took over a plane originally aimed at Washington, D.C., and crashed in a field in Pennsylvania. Learn historical context and practice online with CivicFlare.
OFFICIAL USCIS ACCEPTED ANSWER(S)
On September 11, 2001, terrorists attacked the United States, targeting the World Trade Center and the Pentagon.
The USCIS includes questions about American-history / Recent to ensure new citizens understand the foundational structures, laws, and history of the United States. Knowing the correct answer demonstrates your attachment to the principles of the U.S. Constitution.
When the USCIS officer asks you, "What major event happened on September 11, 2001 in the United States?", speak clearly and confidently. You do not need to give every possible answer if more than one is accepted — stating just one of the official answers (such as "Terrorists attacked the United States") is completely sufficient to earn full credit.
Try our interactive quiz with instant scoring and AI mock interviews.
Start Free Civics Quiz NowDisclaimer: CivicFlare is an independent platform and is not affiliated with, endorsed by, or associated with U.S. Citizenship and Immigration Services (USCIS) or any government agency.