How a Long Dead Danish King Is Memorialized in Modern Phone Technology

Tom Scott visits the thousand-year-old Jelling stones in Denmark to explain how the long dead Danish king Harald Bluetooth came to be memorialized in modern phone technology in an episode of his series Things You Might Not Know.

The Jelling Stones, thousand-year-old Viking runestones, sit in the town of Jelling in Denmark. They tell the tale of Harald Bluetooth: one of the first kings of Denmark. Here’s why his name is on your phone.