Inventions That Changed History

The wild and often unbelievable stories behind the world's most important inventions.

• Yeardley SmithSelf - Comic Actress
• Anthony KeyvanSelf - Actor
• Justin WillmanSelf - Magician/Comedian
• Lance ReddickSelf - Actor
• Harry JowseySelf - Actor
• Harvey GuillénSelf - Actor
• Rose AbdooSelf - Actress
• Piff The Magic DragonSelf - Comedian
• Adam CarollaSelf - Comedian
• Chris ManciniSelf - Pop Culture Expert
• Kurt KnutssonSelf - Tech Journalist "Cyberguy"
• Rachael HarrisSelf - Actress