The U.S. has a federal system of government where the states and national government exercise separate powers within their own spheres of authority and the lines of power change over time. Explore how the balance of power has shifted over time.
Explore the three interconnected layers of the human brain. The central core (basic life processes), limbic system (emotion and memory) and the cerebral cortex (higher cognitive functions).
After many of the Civil War battles, photographers took pictures of the mangled bodies waiting to be buried. Does this photograph depict an actual battlefield scene, or did the photographer contrive it?
What does this portrait suggest about eighteenth-century attitudes toward the family? See how portraits of the rich and powerful can provide a picture of life in the American colonies.
Maps of the routes of the Lewis and Clark expedition have tended to represent the West as empty country for the taking. On this map, made for a biography of Sacagawea, whose journey is represented?
See how African Americans faced numerous assaults upon their newly won political rights after the Civil War. What are the references employed by the cartoonist Thomas Nast in his cartoon, <em>This is a White Man's Government?</em>
In this cartoon, how does the artist use symbolism and humor to deride Parliament? See how anti-British political cartoons helped shape colonial attitudes towards British actions, like the Stamp Act of 1765.
How has Ácoma accommodated change while maintaining a deep connection to the past? See how this ancient American pueblo has survived and adapted in the face of centuries of conquest.
The World's Columbian Exposition made a statement about the future of city life — a chance for something better than the squalid, polluted, and overcrowded industrial cities of the 19th century. What vision of the future city did the fair present?
This image of a steer skull seems straightforward, but it generated enormous controversy at the time. Can you imagine why? Hint: It was taken to document the hardships Americans suffered during the Depression.
How did the legal status of slavery change in the United States between the Revolution and the Civil War? See how over time, slavery spread in some areas while disappearing or constricting in others.
In 1896, the big issue was the monetary standard, while by 1900 imperialism had taken over as the key national issue. What can you discover in the geographical patterns that emerged in the elections of 1896 and 1900?
The Old Rocky Mountain West had been a wild, untamed place. But with the late 20th century technology, population growth,it seemed that a smaller, more accessible "New West" had arisen. Is the New West still a distinct region or just another place in a homogenous American landscape?
What generalizations can you make about the timing and nature of developments in transportation? See the rapid expansion of roads, canals and railroads from 1830-1860.
Revisit the events of 1876 to 1999. See how the history of Native Americans, women, African Americans and labor continues to be part of the American story.
What else was happening during the settlement of the thirteen colonies? See how other European nations, along with the British, colonized America and how events in Europe impacted colonization.
Inventions in the late nineteenth century marked the beginning of rapid changes communications, transportation, and in the way Americans lived and worked. How did technological innovation affect the United States after the Civil War?