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.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
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.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
The inspiring story of the modern environmental movement.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
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.