The Daily CivicsUnofficial civics test practice

2025 test · Question 91 of 128

Name one war fought by the United States in the 1800s.

American History · 1800s

Answers from the USCIS list

Give one of these answers.

  • War of 1812
  • Mexican-American War
  • Civil War
  • Spanish-American War

Our explanation

“The 1800s” means the years 1800 to 1899. Four wars from this time are official answers: the War of 1812, the Mexican-American War, the Civil War, and the Spanish-American War.

Remember it

Say “the Civil War.” It also answers North vs. South and the war that ended slavery.

Source

USCIS 2025 Study Guide (M-1175) p. 56. Quote: “The Mexican-American War was one war fought by the United States in the 1800s.” Other wars listed: “War of 1812, Civil War, Spanish-American War.”

Last checked on September 29, 2026.

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