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What U.S. war ended slavery?

The Civil War.

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  1. The Civil War ✔
  2. The American Revolution
  3. The War of 1812

Why: USCIS identifies the Civil War as the U.S. war that ended slavery. The American Revolution and the War of 1812 came earlier.

Huh, didn't know that: The Civil War is also the answer to a different test question: the war between the North and the South.

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Why is history like a fruitcake? It's full of dates.
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References

Answer: The Civil War. USCIS identifies the Civil War as the U.S. war that ended slavery. The American Revolution and the War of 1812 came earlier.

  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
    What U.S. war ended slavery? The Civil War
    Checked 2026-10-09.

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