Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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HISTORY

The Claim

The United States acquired Guam after the Spanish-American War.

Verified by Lenz ·

The Short Version

The evidence shows Guam became a U.S. possession as a result of the Spanish-American War. Spain formally ceded Guam to the United States in the 1898 Treaty of Paris, the peace settlement that ended the conflict. A timing nuance remains: Guam was militarily seized during the war, but legal transfer came in the treaty.

Caveats

  • Military capture and legal acquisition are not the same event; Guam was seized during the war but formally ceded by treaty afterward or at the war’s conclusion.
  • Some weaker sources in the record are social-media posts, crowdsourced pages, or unsourced summaries; the strongest support comes from the treaty text and official historical sources.
  • The phrase 'after the Spanish-American War' can blur whether it means after active fighting or by the peace treaty ending the war.

The Receipts

  1. The Spanish-American War, 1898

    Office of the Historian, U.S. Department of State

  2. Treaty of Peace Between the United States and Spain; December 10, 1898

    Avalon Project (Yale Law School)

  3. Spanish-American War

    Naval History and Heritage Command

  4. Treaty of Peace Between the United States and Spain (proclaimed April 11, 1899)

    Office of the Historian, U.S. Department of State

  5. Guam Colonial Records

    FamilySearch

  6. Spanish–American War

    Wikipedia

  7. The 1898 Treaty of Paris

    C-SPAN

  8. Capture of Guam

    Wikipedia

  9. Treaty of Paris (1898)

    Wikipedia

  10. Capture of Guam

    Naval History and Heritage Command

+ 13 more sources — see the full list on Lenz

Filed Under

GuamSpanish-American WarUnited States

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