Question 96 of 128

What U.S. war ended slavery?

Official USCIS answer (in English)

  • The Civil War

How to answer

Topic: American History — 1800s.

This question has one official answer.

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Source: USCIS, 128 Civics Questions and Answers (2025 version), form M-1778 (09/25). Answers that can change are listed at uscis.gov/citizenship/testupdates. Freedom to Belong is an educational nonprofit and is not affiliated with USCIS.