An Oxford University-led... research team... will be looking at a group of artefacts in excavations and museum collections that are traditionally described as ‘Celtic’ because of their use of spirals, circles, interlaced designs, or swirling representations of plants or animals. One main line of enquiry is the relationship between the central European Celts and their nomadic Eurasian neighbours (often referred to as Scythians or Sarmatians), who inhabited the European end of a grassland (steppe) corridor that stretched east towards Central Asia and China... Iron Age tombs frozen in the mountains of Siberia, Mongolia, and Kazakhstan have yielded Roman glass, Chinese...