Students draw three cattle trails that passed through Indian Territory, using a written description of the trails and will create a diary of trail life. Students research a historical trail as assigned. Students share their information...

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.

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.

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.

Article with maps on how the conflict over slavery led to a revolution in Texas and ultimately, the war against Mexico.

An interactive exploration of the Treaty of Guadalupe Hidalgo, which was signed in 1848 and ended the Mexican-American War. Puts the treaty in context, makes reference to U.S. territorial gains, and includes links to larger images, a...

A map of Mexico and southern United States showing the campaigns and battle sites of the Mexican-American War (1846-1848). The map shows the territory acquired from Mexico after the war, and the routes of Taylor, Wool, Kearny, Doniphan,...

A map of Mexico and southern United States showing the campaigns and battle sites of the Mexican-American War (1846-1848). The map shows the routes of Taylor, Wool, Kearny, Doniphan, and Scott, the pre-war boundaries of the United States...

A map of Texas, New Mexico, and northern Mexico showing the principal campaigns and battle sites of the Mexican-American War of 1846-1848.

Read this letter by Sam Houston through which he "asks for American help in preventing uprising in Nacogdoches, 1836." This site includes images of the original letter, as well as line-by-line transcription of the handwritten text.

As explorers sought to colonize their land, Native Americans responded in various stages, from cooperation to indignation to revolt. The timeline begins in 1492 with the arrival of Christopher Columbus and ends on March 15, 2021:...

This in-depth resource presents a history of the American West from pre-Columbian times until World War I with profiles, documents, and images. It encourages visitors to link these into patterns of historical meaning for themselves....

A map of Mexico and southwestern United States showing the seat of war during the Mexican-American War (1846-1848). The map shows the campaign routes of Kearney, Taylor, Doniphan, Wool, and Scott, with battle sites indicated by...

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...

A map from 1907 of Mexico, Central America, and the West Indies (Greater Antilles to Puerto Rico) between the Spanish-American War in 1898 and the Third Pan-American Conference in 1906. The map shows the political boundaries in 1906,...

(1823-1903) American general that served in the War with Mexico and in the Civil War.

A map of North America, Central America, and northern South America at the end of the American Revolutionary War (1783). The map is color-coded to show the territory of the United States at the time, British possessions in Canada,...