A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.
The 1968 Democratic National Convention saw a clash of political visions on the convention floor and violence outside on the streets of Chicago.
In 1967, thousands of hippies flocked to San Francisco's Haight Ashbury district.
Accused by a janitor, a respected Harvard professor was hanged for the murder of Dr. George Parkman, one of Boston's richest citizens, in 1849.
During World War II, more than a thousand women signed up to fly with the U.S. military as WASPS.
George Eastman introduced the Kodak and Brownie camera systems and transformed photography into something anybody could do.
The American effort to relieve starvation in Soviet Russia in 1921 during the worst natural disaster in Europe in 500 years.
The unusual life of David Vetter, who lived permanently inside a germ-free environment due to severe combined immunodeficiency.