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
Prehistoric North Africa revolution just before the rapid desertification of the Sahara around 3500 BC. The neolithization of North Africa was most likely introduced by waves of migration both from the Levant and from Iberia. The beginning of the Bronze Age in Egypt is conventionally identified as the Protodynastic Period, following the Neolithic Naqada culture about 3200 BC. The Egyptian Bronze Age corresponds to the Old, Middle and New Kingdoms. The Iron Age in Egypt corresponds to the Third Intermediate Period of Egypt. While the Nile valley (Egypt and Meroë) had entered historicity since the Bronze Age, the Maghreb remained in the prehistoric