After suffering sexual abuse as a teenager and being forced out of the house, Aileen Wuornos engaged in sex work and eventually killed seven of her johns in 1989 and 1990.

Born in 1859 and shot dead at the age of just 21, Billy the Kid may have lived a short life, but it was filled with some of the most storied exploits of the Old West.

Was Jesus white, Black, or another race entirely? Go inside the complicated history of what color Jesus of Nazareth may have been.

In 1818, Mary Shelley published her classic novel about Dr. Frankenstein and his disturbing experiments with reanimation — but the stories of these seven scientists from history prove that reality can sometimes be stranger than fiction.

These six "experiments" by Unit 731 rank among some of the most horrifying war crimes ever committed — and they went virtually unpunished.

Construction on California City started in 1958, and its developer hoped that it would one day be larger than L.A. or San Francisco — but more than 60 years later, its population has yet to break 15,000.

Explore the haunting story of the Radium Girls, a group of women exposed to lethal amounts of radium while working in watch factories in early 20th-century America.

While reigning as the autocratic ruler of the Congo Free State from 1885 to 1908, King Leopold II of Belgium may have killed as many as 15 million people.

The photo of "Napalm Girl'' depicting nine-year-old Phan Thi Kim Phúc running from a South Vietnamese airstrike shocked the world in 1972. But there's a lot more to her story.

Black Liberation activist Assata Shakur was found guilty of killing a police officer in 1977, only to escape prison two years later and become a political refugee in Cuba.