An engraving on an almost 2,000-year-old knife believed to be the oldest runes ever found in Denmark has been discovered by archaeologists.The runic inscription – the alphabet of Denmark's earliest written language – was etched into an 8cm iron knife found in a grave below an urn near the city of Odense on the island of Funen. The five characters, each about 0.5cm tall, followed by three grooves, spell out hirila, which means "little sword" in Old Norse.Along with an inscribed bone comb found nearby in 1865, they are the oldest runes ever found in Denmark. Jakob Bonde, the city's...