"The Wizard of Menlo Park," Inventor Thomas Edison, built the first practical light bulb and revolutionized the world.
Major Walter Reed's discovery in 1900 that mosquitoes spread yellow fever halted an outbreak and led to the disease's eventual eradication.
The grave truth behind modern forensics was discovered in 1920s New York.
The country's oldest beauty contest has become a battleground and a barometer for the position of women in society.
The story behind the development of the oral contraceptive that put women in control of birth control.
It was the deadliest workplace accident in New York City’s history.
In 1967, thousands of hippies flocked to San Francisco's Haight Ashbury district.
The bizarre saga of the Symbionese Liberation Army and Patty Hearst's kidnapping and conversion to her captors' cause.