Nordic Bronze Age objects. These valuable metals were all imported, primarily from Central Europe, but they were often crafted locally and the craftsmanship and metallurgy of the Nordic Bronze Age was of a high standard. The archaeological legacy also comprise locally of crafted wool and wooden objects and there are many tumuli and rock carving sites from this period, but no written language existed in the Nordic countries during the Bronze Age. The rock carvings have been dated through comparison with depicted artifacts, for example bronze axes and swords. There are also numerous Nordic Stone Age rock carvings, those of northern Scandinavia mostly
Neolithic and Bronze Age rock art in the British Isles the agricultural intensification in the Late Bronze Age, the first millennium BCE. Within Britain, the majority of recorded Neolithic and Bronze Age rock art comes from the northern part of the island. Cup-and-ring marks are particularly common in this area. Cup-and-ring marks are usually attributed to the Neolithic and Early Bronze Ages, while attempts at building a relative chronology have been tried in Dumbartonshire. Over 70 examples of late prehistoric rock art have been identified in the South West of Britain, being far sparser than those found in the North. This may in part be due to the harder nature