A ninth century glass and silver ring from a woman’s Viking burial site in Birka, Sweden
 
A ninth century glass and silver ring from a woman’s Viking burial site in Birka, Sweden is thought to have originated from an area following the Islamic religion. The ring is inset with coloured glass and engraved ‘for (or to) Allah’ in the ancient Arabic Kufic script.
 
Bruce Bower, writing for ScienceNews reports –
 
More than a century after its discovery in a ninth century woman’s grave, an engraved ring has revealed evidence of close contacts between Viking Age Scandinavians and the Islamic world.
 
Excavators of a Viking trading center in Sweden called Birka recovered the silver ring in the late 1800s. Until now, it was thought that it featured a violet amethyst engraved with Arabic-looking characters. But closer inspection with a scanning electron microscope revealed that the presumed amethyst is colored glass (an exotic material at the time), say biophysicist Sebastian Wärmländer of Stockholm University and his colleagues.
 
An inscription on the glass inset reads either “for Allah” or “to Allah” in an ancient Arabic script, the researchers report  February 23 in Scanning.
 
More here.