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This Day in American History

August 12

1 historic event on this date

Historical1898

Spanish-American War Ends

The United States and Spain signed a protocol of peace ending the Spanish-American War. The subsequent Treaty of Paris gave the U.S. control of Puerto Rico, Guam, and the Philippines, transforming the nation into a power with overseas territories.

Why It Matters

The end of the Spanish-American War sparked a fierce national debate about imperialism and whether a republic founded on self-governance could justly govern peoples without their consent.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles