Mark Twain invented the modern bra strap? A ventriloquist who was a huge star in kids’ television and in Vegas invented the first artificial heart? A rock star’s invention saved model train giant Lionel?

The Backstory: Sibling Squabbles in Royal Families
09:59

The Backstory: Famous Cat Lovers
06:59

The Backstory: Steven Spielberg: The Kid Who Literally Snuck Into Hollywood
08:57