This ring, found at a Viking burial site in Birka, Sweden, holds great historical significance as it suggests direct connections between the Vikings and the Abbasid Caliphate around 1,200 years ago. Made from a silver alloy and decorated with a colored soda-lime glass stone, the ring now resides at the Swedish History Museum in Stockholm.

Discovered in a 9th-century woman's grave during the Viking Age, the ring is unusual due to its unique features. It has an inscribed violet stone in Arabic Kufic script that translates to "For/to Allah". It's believed that the ring saw little use, possibly passing from the maker straight to the Birka woman, with only a few owners in between.

As the only ring with an Arabic inscription found at a Scandinavian archaeological site, it's a truly unique artifact among Viking Age discoveries in Sweden. It provides solid proof of interactions between Viking Age Scandinavia and the Islamic world.