A sea raiders' boat that sank off the coast of Denmark 2,400 years ago has been hiding a fingerprint, as well as several chemical clues that are now helping researchers uncover just where these raiders came from millennia ago, a new study finds.
The vessel, known as the Hjortspring boat, is the oldest known wooden plank boat in Scandinavia, and is currently on display at the National Museum of Denmark. But its origins have long been an enigma.
