Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The most daring and innovative accomplishment at the turn of the 20th century.
The New Deal program CCC put three million young men to work in camps across America.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The story of the farmers who dreamed of prosperity and lived through ten years of drought, dust, disease and death.