History of American Wars
History of American Wars: Texas Independence: Mexican Texas 1821 1836
Discusses the sequence of events in Texas from 1821 to 1836 that led up to the Mexican-American War.
Virginia Tech
Virginia Tech: The Mexican American War and the Media, 1845 1848
A collection of newspaper articles, images, timelines, and bibliographies related to the Mexican-American War.
Henry J. Sage
Sage American History: Expansion and War: The United States 1840 1860
Article on the era of westward expansion and the resulting Mexican American War. The author demonstrates how Manifest Destiny and frontier settlement led to the annexation of Texas and ultimately war with Mexico over the territory.
Ducksters
Ducksters: History: Mexican American War for Kids
Kids learn about the Mexican-American War fought over the land rights to Texas after the Texan Revolution on this site.
Museum of the City of San Francisco
The Virtual Museum of the City of San Francisco: The Mexican American War
The Virtual Museum of the City of San Francisco displays the history of the Mexican-American War, including an explanation of border changes in the California and Mexico areas. It also discusses the idea of Manifest Destiny.
History of American Wars
History of American Wars: Mexican American Culture Differences
Describes the structure of Mexican society in the 19th century and the cultural clashes that resulted in their dealings with Americans in Texas.
History of American Wars
History of American Wars: Mexican American War Timeline 1846 1848
A timeline showing the events between 1821 and 1845 that led up to the Mexican-American War, followed by one with the major events of the war from 1846 to 1848.
Siteseen
Siteseen: American Historama: Mexican American War
Summarizes the causes of the Mexican American war and provides facts about the history, famous people, and events surrounding it.
Countries and Their Cultures
Countries and Their Cultures: Multicultural America: Mexican Americans
Provides an overview of the traditional culture and lifestyle of Mexican Americans. (Note: Content is not the most current.)
Henry J. Sage
Sage American History: California and the Gold Rush
Article by Henry Sage explaining the history of California, how it became a state, and how President Polks desire to acquire California contributed to the Mexican-American War.
Henry J. Sage
Sage American History: Texas From American Settlement to Annexation 1820 1845
Article in which the author takes us through the history of Texas from the time Americans arrived and settled in the area to annexation, and finally, war with Mexico over the territory. With photographs and links to related resources.
History of American Wars
History of American Wars: Mexican American Religion
Discusses the events from the first arrival of the Spanish that led to the adoption of Catholicism as the dominant religion of Mexico.
US Department of State
U.s. Department of State: Office of the Historian: Milestones: 1830 1860
Concisely written accounts of three important events in the history and shaping of Texas: the Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo.
Smithsonian Institution
National Museum of American History: The Price of Freedom: Americans at War
View comprehensive sets of artifacts that tell the story of America's wartime past and present. Artifacts from every major American military conflict, beginning with the American Revolution, can be closely examined. Full curatorial notes...
Other
Kentucky Historical Society: Kentucky Military Treasures
A collection of personal stories, illustrated with artifacts, documents, and photographs, that exemplifies the military experiences of Kentuckians in America's wars, beginning with the War of 1812. Requires Adobe Flash.
A&E Television
History.com: Hispanic History Milestones: Timeline
The American Hispanic/Latinx history is a rich, diverse and long one, with immigrants, refugees and Spanish-speaking or Indigenous people living in the United States since long before the nation was established. America's Hispanic...
Khan Academy
Khan Academy: Us History: 1844 1877: Quiz 1
A quick five question quiz over US history in the mid 1800s.
Digital History
Digital History: War With Mexico [Pdf]
Read about the reasons President James Polk presented to Congress as justification for a declaration of war against Mexico. Find Polk's war message and the rebuttal by Congressman Davis.
Lone Star Junction
Lone Star Junction: Notable Texans Before 1900
Lone Star Junction identifies an extensive list of high-profile Texans prior to 1900. A chart informs readers what general role in Texas history each person was involved in from Texas Revolution, Indian Wars, Civil War, and the...
Khan Academy
Khan Academy: Us History: 1844 1877: Annexing Texas
Quickly following Texan independence, the United States admitted Texas into the republic as a slave state.
Library of Congress
Loc: Major Events in History: The Treaty of Guadalupe Hidalgo
A synopsis of the events preceding the signing of the Treaty of Guadalupe Hidalgo, plus great pictures and links to excellent maps of the area negotiated for and to the text of the actual document.
Curated OER
National Park Service: Californio to American: A Study in Cultural Change
This site has a lesson about the ranching industry, creation of California towns and the changes over time. Contains information, inquiry question, historical context, maps, readings, and images.
Khan Academy
Khan Academy: Manifest Destiny
This Khan Academy resource provides notes for American History. "Manifest Destiny" is explained on this resource, along with the implications associated with expansion of the North American continent.
Annenberg Foundation
Annenberg Learner: Interactives: The Nation Expands: Texas Annexation, 1845
Explains how Texas came to become part of the Union in 1845, at its own request. This precipitated the Mexican-American War.