Prehistoric technology Ground and polished stone tools continued to be created and used during the Neolithic period. Numeric record keeping evolved from a system of counting using small clay tokens that began in Sumer about 8000 BC. The Stone Age developed into the Bronze Age after the Neolithic Revolution. The Neolithic Revolution involved radical changes in agricultural technology which included development of agriculture, animal domestication, and the adoption of permanent settlements. The Bronze Age is characterised by metal smelting of copper and its alloy bronze, an alloy of tin and copper, to create implements and weapons. Polished stone tools continued to be
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