While things like the Slinky and the Post-it Note may seem pretty ubiquitous, simple ideas today, they each have their own bizarre accidental origin story. In the second part of this week's two-part series, Ben, Noel and Max dive into the stories of military coil research and a tenacious 3M employee nicknamed "Mr. Persistent."

The Bizarre Life of Elvis, Part Two: Public Fame, Private Chaos
36:17

The Bizarre Life of Elvis, Part One: From Poverty to Pop Stardom
31:51

CLASSIC:Hong Xiuquan: The Younger Brother of Jesus Christ Who Led a Bloody Rebellion in China
37:47