Not even the workers in Oak Ridge, Tennessee, had a clue as to what they were doing — which turned out to be refining the uranium for the atomic bombs dropped on Hiroshima and Nagasaki.

To overthrow President Batista's tyrannical government, Fidel Castro led a band of guerilla farmers in the Cuban Revolution — and was successful.

The Fundamentalist Church of Jesus Christ of Latter-Day Saints split from the Mormon Church on the issue of polygamy, believing it was divinely ordained that men should have multiple wives. By the early 2000s, FLDS leader Warren Jeffs was using this to justify marrying more than 80 wives and sexually assaulting girls as young as 12.

"In those days, we were very loyal Brits - stupid as that may sound. We were brainwashed into being little brown Britishers."

The friendship that blossomed between Queen Victoria and Abdul Karim scandalized the royal court, which tried to erase Karim from history once the Queen died.

The Cultural Revolution was one of the bloodiest eras in China's history in which 1.5 million people died — and it lasted but 10 years.

The Haymarket Riot started with a single stick of dynamite — and culminated in a wave of paranoia, police injustice, and activism that changed labor laws around the world.

The house at Pooh Corner was not a magical place for the real Christopher Robin Milne who was overshadowed by his fictional namesake.

These Holocaust victims pictures, taken as new prisoners entered the camps, put faces on the statistics the world remembers today.

These 20 serial killers let us know why they killed — but we'll never know just how to unread what they said.

Discover the 12,000-year history of irezumi, the ancient form of Japanese body art widely seen as a Yakuza tattoo tradition today.