Blackbeard foiled!

Edward Teach, a.k.a Blackbeard, punished a mutinous crew by banishing them on a tiny island in the Caribbean Sea. Each crewman was given a cutlass and some drink to survive the snake infested place. He also hoped that they would eventually get rid of each other. But returning after a month, he found that fifteen of them still survived. What is this tale supposed to be the origin of?

Answer: (select the text below to show)

The song “15 men on a Dead Man’s Chest/Yo-ho-ho and a bottle of rum.” (The island was apparently called “Dead Man’s Chest”.)

Question by J Ramanand