After a brief discussion of Manifest Destiny in other parts of country, read about the Texas rebellion against Mexico, the battles against Santa Anna, and the treaties that made Texas an independent country. [pdf]

An explanation of the difficulties the Republic of Texas encountered when deciding whether to join the Union. Also discusses President James Polk's efforts to expand the territories held by the United States, which brought him into...

Quickly following Texan independence, the United States admitted Texas into the republic as a slave state.

Read this brief overview of the events leading to the annexation of Texas to the United States in 1845.

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.

This is an interesting look at the impact of the Battle of San Jacinto not only for the Republic of Texas, but for places in North America and in Europe. Links to additional information.

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.

Teachers and students will enhance their lessons with the videos, lessons, and slideshows presented. This unit sets the stage for a nation expanding west following the Texas Revolution.

Dedicated to the memory of U.S. veterans who fought in the U.S.-Mexican War, this website provides documents, images, maps, and FAQs.

This online lesson plan shows young scholars through primary sources how the borders of the U.S. changed in just a few years. They are asked to analyze maps and use map skills. All maps and worksheets are included as well as additional...

A map of North America in 1840 at the time when the concept of "Manifest Destiny" was being applied to annex the Oregon Territory, Texas, and much of northern Mexico into the United States. The map is color-coded to show the extent of...