# Canonical recap data for Gadsden Purchase Expands U.S. (1853)
# Source: https://recap.at/1853/gadsden-purchase
# Format: YAML 1.2 (UTF-8). Generated at request time.
slug: gadsden-purchase
canonicalUrl: "https://recap.at/1853/gadsden-purchase"
title: Gadsden Purchase Expands U.S.
subtitle: The U.S. acquired 29,670 square miles of Mexican territory for $10 million, completing the continental expansion framework and intensifying sectional tensions.
recapType: global_event
eventStatus: concluded
startDate: 1853-01-01
datePrecision: year
year: 1853
decade: 1850
country:
name: United States
slug: united-states
summaryShort: The Gadsden Purchase, also known as the Treaty of Mesilla, is a 29,640-square-mile (76,800 km2) region of present-day southern Arizona and southwestern New Mexico that the United States acquired from Mexico. The first draft was signed on December 31, 1853, by James Gadsden, US Minister to Mexico, and by Antonio López d
summaryLong: The Gadsden Purchase, also known as the Treaty of Mesilla, is a 29,640-square-mile (76,800 km2) region of present-day southern Arizona and southwestern New Mexico that the United States acquired from Mexico. The first draft was signed on December 31, 1853, by James Gadsden, US Minister to Mexico, and by Antonio López de Santa Anna, president of Mexico. The treaty took effect on June 8, 1854.
heroImageUrl: "https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Gadsden_Purchase_Cities.svg/1280px-Gadsden_Purchase_Cities.svg.png"
heroImageCredit: Wikipedia · "Gadsden Purchase"
importance: 71
sourceConfidence: 75
keyFacts: []
timeline: []
sources:
- url: "https://en.wikipedia.org/wiki/Gadsden_Purchase"
  title: Gadsden Purchase
  provider: Wikipedia
related: []
categories:
- election
metaDescription: The Gadsden Purchase, also known as the Treaty of Mesilla, is a 29,640-square-mile (76,800 km2) region of present-day southern Arizona and southwestern New Mexi
wikidataQid: Q827212
archiveSnapshots:
- url: "https://web.archive.org/web/20260701102437/https://en.wikipedia.org/wiki/Gadsden_Purchase"
  capturedAt: 2026-07-01
  label: Gadsden Purchase
  originalUrl: "https://en.wikipedia.org/wiki/Gadsden_Purchase"
