Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The inspiring story of the modern environmental movement.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
The New Deal program CCC put three million young men to work in camps across America.