The deadliest wildfire in U.S. history wasn’t in California.

President Abraham Lincoln had to worry about the first lady being a leaker, and it was quite a scandal.

If the order for a nuclear attack is issued, the soldiers operating the launch machine have no choice but to fire. Or do they?

In 1926, the United States received a birthday card signed by 5.5 million Polish people.

Buildings that stand as symbols of American democracy - the White House, Mount Vernon and Monticello, to name a few - were erected with the labor of those who were not free.

A dog and a cadaver deserve credit for their contributions to the invention of the telephone.

Jesse James, the most famous outlaw in history, was eventually foiled by a picture hanging crooked on a wall.

President Trump made history when he nominated a woman to become director of the Central Intelligence Agency. But while a woman leading the CIA was once unthinkable, female spies have made enormous, overlooked contributions in espionage.

Oscars night is probably the one moment around the world when people become really interested in envelopes.

The history of social media began in 1844, when Samuel F.B. Morse sent a message from Washington to Baltimore. It said, "What hath God wrought?"