A solid gold swastika disc is the oldest-known reference to Odin of Valhalla, the Norse god of war and death, say archaeologists

• Danish scientists have found the oldest-known reference to the Norse god Odin. 
• It is the first piece of evidence that Odin was worshipped as early as the 5th century. 
• One of the experts who made the discovery said "I can't bring my arms down in pure ecstasy."

Danish scientists have found the oldest-known reference to the Norse god of war, Odin, on an ancient gold disc.