Inside Pennsylvania Hall in 1838, an abolitionist meeting was disrupted when members of an anti-abolitionist mob threw rocks through the windows. The following night, the protestors set fire to the building -- completely destroying Philadelphia's monument to free speech.
The legendary tale of Emeline Gurney, who - as the story goes - sold an illegitimate child at the age of 14 only to marry him at a later age.
The first woman to fly solo across the Atlantic, Earhart disappeared in 1937 during an attempt to circumnavigate the world by airplane.
Robert Noyce's invention of the microchip launched the world into the Information Age.
A brilliant scientist, Oppenheimer was tasked with the development of the atomic bomb during World War II.
Joseph Goebbels, the second most powerful man in Nazi Germany, was the mastermind behind Adolf Hitler's success.
Clemente was an exceptional baseball player whose career sheds light on larger issues of immigration, civil rights and cultural change.
In 1969, homosexuality was illegal in almost every state... but that was about to change. The Stonewall riots marked a major turning point in the modern gay civil rights movement.
The Alabama governor and presidential candidate promised segregation forever.