Curated OER
Etc: Territorial Development of the United States, 1783 1889
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...
Curated OER
Etc: The Us at the Outbreak of the Civil War, 1860 1861
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...
Smithsonian Institution
Smithsonian: Textiles of the North American Southwest
This site explores the weaving traditions of the Native American and Hispanic peoples of northern Mexico and the southwestern United States. A gallery of artifacts, timeline, map glossary, and textual descriptions are included. This is a...
Curated OER
Map of New Mexico
Use this site to learn the history of the controversial creation of the atomic bomb in the United States. Sound clips from National Public Radio and a photo gallery help to give you a first hand experience of the making of the atomic bomb.
Wikimedia
Wikipedia: Pacific Ring of Fire
Wikipedia offers information on the location of the Pacific Ring of Fire, an area of frequent earthquakes and volcanic eruptions. Map included.