Primary sourceDocument2 February 1848

Treaty of Guadalupe Hidalgo

Nicholas Trist; Mexican commission · 2 February 1848

The 1848 treaty ending the Mexican-American War, a conflict rooted in the Texas annexation Tyler pushed through as president.

This treaty resulted from war following the Texas annexation Tyler championed as president.

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Full text (U.S. National Archives)

About this source

What it is

This is the exchange copy of the Treaty of Guadalupe Hidalgo, written in Spanish and English, held by the U.S. National Archives. Signed on February 2, 1848, it ended the Mexican-American War. Mexico ceded a large portion of its territory to the United States, and the treaty was negotiated by Nicholas Trist on the American side and a Mexican commission on the other.

Why it matters

The war that this treaty ended grew out of the annexation of Texas, which President John Tyler pushed through near the end of his term. The treaty shows the long-term consequences of Tyler's expansionist policies, reshaping the map of North America and deepening disputes over slavery in new territories.

Look closer

Why do you think this treaty exists in two languages?
What does the treaty's language of 'peace and friendship' leave out about how the territory was taken?
How might Tyler's push for Texas annexation connect to the war that led to this treaty?

This document is part of the curated material that grounds the AI version of John Tyler, Zachary Taylor, Millard Fillmore, Franklin Pierce and Ulysses S Grant on Humy.ai — when students ask about related events, the AI can quote it and cite it.