This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The converging forces, circumstances, personalities and events that propelled a group of English men and women west across the Atlantic in 1620.
The last surviving member of a California Indian tribe became a sensation in 1911.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
The New Deal program CCC put three million young men to work in camps across America.
The contradictory history of a dam that became a statement of American power and prestige.
The most daring and innovative accomplishment at the turn of the 20th century.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.