Vivian Liberto was Johnny Cash's first wife and had four children with him. But after their divorce in 1967, she was cast as the bitter shrew who had been holding his talents back.

From fighting poachers and outlaws to doing battle with Native American tribes, the Buffalo Soldiers of the Western frontier left behind a complex legacy.

Found on remote New Zealand islands, the kakapo is a giant flightless parrot that has become critically endangered because of predation and human encroachment.

After four white police officers were acquitted for the beating of Rodney King in April 1992, protests turned violent as the LA riots left 53 dead, 2,000 injured, and thousands incarcerated.

Beginning in the Late Middle Ages, Ottoman soldiers abducted children from Christian families and forced them into the Janissaries, one of the fiercest armies in history.

For decades, interracial relationships around the world were taboo and sometimes even illegal. Here's how these couples persevered despite their struggles.

Though Wayne Williams was convicted in two cases, who was behind the rest of the Atlanta murders that left at least 28 dead from 1979 to 1981?

Horseshoe crab blood has helped humans fight disease since the 1970s, but if we keep over-harvesting it, there may be none of these crabs left to save us.

While most people know her as a master chef, Julia Child also served as a spy for the Office of Strategic Services, where she collected and analyzed top-secret intelligence.

When the Eiffel Tower was built by Gustave Eiffel in 1889, it was designed to be the main attraction of the World's Fair — but most Parisians hated it.

When Rocky Dennis died at age 16, he had already lived more than twice as long as doctors expected — and lived a fuller life than anyone thought possible.