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
South Asian Stone Age to return to Adhichanallur as a source of new knowledge in the future. South Asian Stone Age The South Asian Stone Age covers the Palaeolithic, Mesolithic and Neolithic periods in South Asia. Evidence for the most ancient anatomically modern "Homo sapiens" in South Asia has been found in the cave sites of Cudappah of India, Batadombalena and Belilena in Sri Lanka. In Mehrgarh, in what is today western Pakistan, the Neolithic began c. 7000 BCE and lasted until 3300 BCE and the first beginnings of the Bronze Age. In South India, the Mesolithic lasted until 3000 BCE, and the Neolithic