Serbian archaeologists find "world's oldest metal artefact"

Kursumlija, 2 October: Archaeologists working on the Plocnik site near Kursumlija [southern Serbia, close to Kosovo] have made a sensational discovery - a 7,500-year-old house and a metal chisel from an era belonging to the Stone Age. The archaeologists said that they expected they would prove the theory that the age of metal began much earlier than previously thought...