In 1936 Angie Debo uncovered the U.S. government's theft of Native Americans' oil rich lands in Indian Territories of Oklahoma.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
Schools taught Native Americans to imitate white men in a liberal "civilizing" mission in 1875.
The most daring and innovative accomplishment at the turn of the 20th century.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The contradictory history of a dam that became a statement of American power and prestige.