Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The 300-year saga of the American whaling industry.
The New Deal program CCC put three million young men to work in camps across America.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
The inspiring story of the modern environmental movement.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.