Her 1963 warnings about the effects of pesticides and herbicides - especially DDT - sparked a revolution in environmental policy and created a new ecological consciousness.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The 300-year saga of the American whaling industry.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The New Deal program CCC put three million young men to work in camps across America.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.