If women in the 1800s wanted to take a swim, they were pulled into the surf in a cabana on wheels, wearing 30 pounds of wet wool. So how did we get to the bikini, much less the thong?

The Backstory: Shocking Death of a Heroic 9/11 Widow
10:31

The Backstory: Technology: Where We Came From and Why We’re So Lonely
10:30

The Backstory: The London Fog That Killed 12,000
10:19