Curated OER
Etc: The Territory of the United States, 1846 1848
A map showing the territory of the United States after the annexation of Texas in 1845, and the acquisition of the Oregon Country by treaty with Great Britain in 1846. The map is color-coded to show the possessions of the United States,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Texas Annexation, 1845
A map of territory claimed by Texas when admitted into the Union in 1845. The map is coded to show the frontiers of Texas with the United States and Mexico, and the disputed territory in the west between the Rio Grande and Nueces rivers.
History Tools
History Tools: John O'sullivan Coins the Phrase Manifest Destiny 1845 [Pdf]
What was "manifest destiny"? In this excerpt, learn the role race played in American expansionism and the proposed addition of Texas to the United States.
Rutherford B. Hayes Presidential Library & Museum
Rutherford B. Hayes Center: Who Is James K. Polk?
This page features an analysis of the Democratic Party's decision to nominate the relatively unknown James Polk for their presidential candidate in 1844. This article gives insight into the political atmosphere of the time.
University of Oregon
Mapping History Project: Mexican Cession: Political Boundaries
Click on this map to see the boundaries of Mexico, Texas, and the United States before the Mexican Cession, and then click again to see the land ceded to the U.S. after the Treaty of Guadalupe Hidalgo. Be sure to click to see the key...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Mexico and Texas, 1845 1848
A map of Mexico and Texas from the annexation of the Republic of Texas by the United States (1845) to the end of the Mexican-American War (1848). The map is color-coded to show the territory of Texas in 1845, the territory of dispute...
Curated OER
Etc: Territorial Growth of the United States, 1783 1900
A map from 1911 of the United States showing the territorial acquisitions from the original states and territory established in 1783 to the Tripartite Convention of 1899 in which Germany and the United States divided the Samoan...
Curated OER
Etc: Territory Ceded by Mexico, 1845 1853
A map of the territory acquired from Mexico including the annexation of Texas in 1845, California, Utah Territory, and New Mexico Territory in 1848, and the Gadsden Purchase in 1853.
Curated OER
Etc: Territory Acquired From Mexico, 1845 1848
A map of the territory acquired from Mexico including the annexation of Texas in 1845 and California, Utah Territory, and New Mexico Territory in 1848.
Curated OER
Educational Technology Clearinghouse: Maps Etc: The Mexican War, 1803 1848
A map of northern and central Mexico and southern United states showing the area of conflict during the Mexican-American War (1846-1848). The map shows the Mexican boundary (under Spain) established by the Louisiana Purchase (1803)...
Curated OER
Educational Technology Clearinghouse: Maps Etc: United States, 1845
A map of the United States in 1845 after the Louisiana Purchase, the Lewis and Clark Expedition, and the annexation of Texas. The map is color-coded to show the States and territory of the United States west to the Pacific with the dates...
Annenberg Foundation
Annenberg Learner: u.s. History Map Interactive
Become a geography whiz as you learn how the United States was settled. Discover how the continent was irrevocably changed by European colonization, the events that caused the wholesale displacement and decimation of the land's original...
US National Archives
Nara: Teaching With Documents: Lincoln's Spot Resolutions
This "Teaching with Documents" lesson on Lincoln's spot resolutions explores the Mexican War, Lincoln's questioning of the propriety of the war, and the power of the U.S. President at that time. Content includes extensive historical...
Curated OER
Etc: Acquisition of Territory, 1783 1884
A map from 1885 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Russian cession of Alaska in 1867. The map is color-coded to show the progression from the original...
Curated OER
Etc: Territorial Growth of the United States , 1783 1867
A map from 1897 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the purchase of Alaska from Russia in 1867. The map is color-coded to show the progression from the...
Curated OER
Etc: Territorial Growth of the United States, 1783 1867
A map from 1897 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the purchase of Alaska from Russia in 1867. The map is color-coded to show the progression from the...
Curated OER
Etc: The Territorial Growth of the United States, 1783 1853
A map from 1911 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Gadsden Purchase of 1853. The map is color-coded to show the progression from the original thirteen...
Curated OER
Etc: The Territorial Growth of the United States , 1783 1853
A map from 1894 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Russian cession of Alaska in 1867. The map is color-coded to show the progression from the original...
Curated OER
Etc: Territorial Acquisitions of the United States, 1783 1900
A map from 1920 of the United States and its territories between 1783 and 1900 showing the nation's expansion and date of acquisition of each new territory or possession. The map is color-coded to show the progression from the original...
Curated OER
Etc: The Growth of the United States, 1776 1867
A map of the United States showing the growth of the nation from 1776-1867. The map is color-coded to show the thirteen original states, the territory acquired by conquest during the revolution and the Treaty of 1783, the Louisiana...
Curated OER
Etc: Territorial Development of the United States, 1783 1867
A map of the United States showing the growth of the nation from 1783-1867. The map is color-coded to show the thirteen original states, the territory acquired by conquest during the revolution and the Treaty of 1783, the Louisiana...
PBS
New Perspectives on the West: Sam Houston (1793 1863)
This biography on Sam Houston focuses his life as an advocate for Indians and his controversial political career.
Curated OER
Perry Castaneda Map Collection: Admission of States and Territorial Acquisitions
Here's a map to show you when states were added to the Union. It also shows territories and when they were acquired.
Digital History
Digital History: Western Expansion: Conclusion
A good overview of the territorial expansion and its results that occurred in the United States over the first half of the 19th century.