By the 1850s, America's busiest ports were in New England, many with dozens of whale ships embarking on hunting expeditions every week.
America's west coast was also home to hundreds of whale ships. Pacific voyages departed from San Francisco, California and Honolulu and Lahaina, Hawaii with the greatest regularity.
The New Deal program CCC put three million young men to work in camps across America.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
A personal story of one family's dramatic effort to hold onto their family farm in Iowa as massive foreclosures sweep the nation in the 1990s.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The journey of Prince Maximilian, German naturalist, and artist Karl Bodmer, who explored the Mississippi River area from 1832-1834.
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.