New analysis of Bronze Age artefacts in southern Scandinavia shows copper was traded from British Isles and Slovakia 4000 years ago. 500 years later these trade networks collapsed and fresh copper was then traded from the southern Alps. #metallurgy https://t.co/XlbfVxAowH pic.twitter.com/mQllJR2n5r

— European Association of Archaeologists (@archaeologyEAA) June 18, 2021