On Christmas Eve in 1968, the Apollo 8 astronauts captured an image that symbolizes hope and inspired environmentalism.

On March 25, 1969, John Lennon and Yoko Ono were a few days into their marriage when they invited the press to join them at their honeymoon suite at the Amsterdam Hilton Hotel.

Jazz singer Ethel Ennis’s voice wowed audiences and won praise from critics. But when she was faced with the opportunity to become a superstar, Ennis chose a different path.

The nurse who founded the American Red Cross had no formal training in medicine. She tended to countless wounded soldiers.

In the 1950s, a child trying to call Santa Claus accidentally called NORAD and changed Christmas Eve forever.

Toys R Us founder Charles Lazarus had no idea how big the toy industry would become.

After the Civil War, formerly enslaved people placed notices in black-owned newspapers across the country to find their loved ones.

A few days before his team took the field as huge underdogs in Super Bowl III, New York Jets quarterback Joe Namath made what was seen as an insane prediction at the time: "The Jets will win Sunday," he said. "I guarantee it."

In the 1950s, Charles Van Doren, a quiet professor in New York City, became wrapped up in one of the biggest television quiz show scandals in history.

While on a research trip to the Arctic in the early 20th century, scientist Clarence Birdseye — a name you might recognize from the frozen food aisle — made an observation that would go on to change the way we eat.