On this map you can see Alaska and Hawaii in relation to the contiguous United States and read brief text about their purchase/annexation, territorial status, and addition as states.

An interactive map that clearly shows the change in the status of slavery in territories from the Missouri Compromise to the Compromise of 1850. Click on the map to see the status before and after the Compromise of 1850.

A map of the American Northwest Territory showing the boundary developments in 1790, 1800, and 1810. The upper left map shows the territory acquired by the United States from Britain after the Revolutionary War as established by the...

A map of the United States at the outbreak of the Civil War (1860-1861) showing the States that seceded to form the Confederate States of America. The map also shows the territorial boundaries of the Washington Territory, Dakota...

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...

A map of the western United States between 1836 and 1850 showing the Texas controversy and territorial adjustments at the time. The map is color-coded to show the unorganized territory of the Louisiana Purchase and the boundary line with...

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...

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...

A map of the United States showing the territorial growth from 1783 to 1790. The map is color-coded to show the original territory after the American Revolutionary War, the Northwest Territory north of the Ohio River in 1787, the...

A map of the eastern coast of North America showing territorial claims of Europeans and the development of the United Colonies of New England (New England Confederation) in 1643, and the territorial changes between the Dutch and British...

A map from 1889 of North America showing the expansion in the region of the United States from the original Thirteen Colonies at the end of the Revolutionary War in 1783 to the time the map was made, around 1889, before the territories...

A map from 1886 of the United States showing the territories ceded by Mexico and the acquisition of Alaska. The map is color-coded to show the possessions of the United States, Great Britain, and Mexico at the time, and the Mexican...

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...

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.

A map of territory claimed by Texas when admitted into the Union, 1845. The map is color-coded to show the frontiers of Texas with the United States and Mexico, the territory in the east covered under the old Spanish land grants, and the...

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.

A map from 1907 of the United States showing the growth of the nation from 1776-1853. This map is coded to show the thirteen original states, and the territories acquired in 1783, by the Louisiana Purchase in 1803, the northern...

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...

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...

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...

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...

A map from 1911 of the United States and its territories between 1783 and 1900 showing the nation's expansion and date of acquisition of each state or territory. The map also shows major cities, waterways, and mountain ranges. Includes...

A map from 1912 of the United States and its territories between 1783 and 1900 showing the nation's expansion and date of acquisition of each state or territory. The map also shows major cities, waterways, and mountain ranges. Includes...

A map from 1913 of the United States showing its acquisition of territory from the original states and Northwest Territory after the American Revolutionary War in 1783 to the Gadsden Purchase in 1853. The dates for each acquisition are...