Other
The National Academies of Sciences, Engineering, and Medicine: Project Mohole
Project Mohole was "the earth sciences' answer to the space program," a project to gain information about the Earth by drilling a hole through the Earth's crust to the Mohorovicic Discontinuity (Moho). This website gives a history of the...
National Geographic
National Geographic: Encyclopedia: Mantle
An in-depth look at the structure and composition of Earth's mantle, with lots of visuals. Covers lithosphere, Mohorovicic discontinuity, asthenosphere, transition zone, lower mantle, the d double-prime region, mantle convection, mantle...
National Geographic
National Geographic: European Borders Through History
Lesson in which students use maps to explore how European political borders have changed over time. Maps after WWI, WWII and European Union provided for comparison.
University of Minnesota
U Mn: Immigration History: Gatekeeping
This resource presents political cartoons from four different national contexts. Its goal is to further understandings of the ways in which nation-states affect an individual's ability to move freely around the world.
Curated OER
National Park Service: What on Earth Is Plate Tectonics?
An easy-to-understand explanation of what plate tectonics is. Contains information about the inner parts of the Earth, the difference between the three types of plates, and numerous maps and illustrations.
Other
Animated Atlas: Growth of a Nation
A 10-minute movie showing the expansion of the United States after the end of the Revolutionary War. Follow the directions to start the movie and listen to the explanations.
Other
International Joint Commission (Great Lakes)
This bi-national organization deals with boundary disputes between Canadian and American governments in regard to the Great Lakes waterways and water resources. It was founded by the Boundary Waters Treaty of 1909. This organization...
US National Archives
Nara: American Originals: The Treaty of Paris
A photograph from the National Archives and Records Administration of part of the original Treaty of Paris with a brief narrative about the provisions of the Treaty.
Other
Pdn and Kodak Professional: Migrations: Humanity in Transition
Displays images by photojournalist, Sebastian Salgado, on immigrants in motion "seeking survival and a better life - one individual at a time, one family at a time, from field to town to city, and across national boundaries"....
University of Minnesota
University of Minnesota: Eugenics, Race, & Immigration Restriction
This resource consists of primary documents about the international eugenics movements in the late-19th and early-20th centuries. Its goal is to show how eugenics influenced immigration laws and how eugenics theories and policies...
Curated OER
Etc: Maps Etc: Political Boundaries in Europe, 1920
Map of Central and Western Europe after the Treaty of Versailles at the end of WWI. The map includes railroads, canals, shipping routes, major cities and capitals, and the country boundaries established by the Treaties of Versailles,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: The Indian Nations, 1775
An early map of the eastern North America from the Great Lakes to the Gulf of Mexico and east of the Mississippi River around 17765, showing the Indian Nations adjoining to the Mississippi, West and East Florida, Georgia, South and North...
Curated OER
Etc: Maps Etc: The American Indian Nations, 1776
An early map of the southeastern North America around 1776, showing the American Indian Nations of the region at the time. The map shows colonial boundaries extending from the Atlantic coast to the Mississippi River, towns, forts, and...
University of Missouri
Famous Trials: Ruby Ridge (Weaver) Trial (1993)
In the 1980s, the mountainous panhandle of northern Idaho became a magnet for right-wingers of all stripes. Government-haters, minority-haters, immigrant-haters, and modern culture-haters all found refuge in the sparsely-populated...
Biblioteca Virtual Miguel de Cervantes
Biblioteca Miguel De Cervantes: Republica Dominicana
This Bibliotica Virtual Miguel de Cervantes site in Spanish for the Dominican Republic provides a wealth of information, including the national flag, a map, holidays, and statistical data on land size, climate, population, life...
Curated OER
University of Texas: Swaziland: Political Map
A political map of Swaziland showing the district boundaries, major cities and highways, and the neighboring countries of this landlocked nation. From the Perry Castaneda Collection.
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1888
A map from 1888 of North America, Central America, and Caribbean showing national boundaries at the time, major cities, mountain systems, rivers, and coastal features. The province boundaries of the Dominion of Canada are shown,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: South America, 1903
A map from 1903 showing the national boundaries of South America at the time (note the boundaries between Peru and Bolivia, and that Columbia, Ecuador, and Panama are shown as one country). The map shows capitals and major cities, towns,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1897
A map from 1897 of North America, Central America, and the Caribbean showing national boundaries, major cities, terrain and coastal features, including mountain systems, basins, plains, lakes, and rivers.
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1899
A map from 1899 of North America, Central America, and the Caribbean showing national boundaries, capitals and major cities, terrain, lakes, rivers, and coastal features. The map shows longitude from Greenwich at the top of the map, and...
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1901
A map from 1901 of North America showing national boundaries, terrain features, and general land elevations for the region. The map is color-coded to show highlands over 2000 feet above sea level in buff tints, lowlands in greens, and...
Curated OER
Educational Technology Clearinghouse: Maps Etc: North America, 1902
A map from 1902 of North America showing national boundaries, terrain features, and general land elevations for the region. The map is color-coded to show highlands over 2000 feet above sea level in buff tints, lowlands in greens, and...
Curated OER
Educational Technology Clearinghouse: Maps Etc: South America, 1882
A map from 1882 showing the general highlands and lowlands of South America and the national boundaries at the time. The map is color-coded to show high lands in buff tint and low plains in green. Mountain chains and systems are shown by...
Curated OER
Educational Technology Clearinghouse: Maps Etc: South America, 1906
A map from 1906 showing the general highlands and lowlands of South America and the national boundaries at the time. The map is color-coded to show highlands over 4000 feet above sea level in red tint, above 1000 feet in buff tint, and...