OLD Stone Age or Palaeolithic age. The period before the development of the script is called the pre-historic times.It is also REFERRED to as the Stone age.The period is broadly DIVIDED into Stone Age, Bronze Age and Iron Age. The earliest age in history is called Old Stone Age or Palaeolithic.It is ROUGHLY taken as 2.5 million years ago to 10,000 B.C. It is characterized by the use of rudimentary chipped stone tools.This period is divided intoLower Palaeolithic cultureMiddle Palaeolithic cultureUpper Palaeolithic culture. The Neolithic period marked the beginning of agriculture and animal domestication.The site of Mehrgarh has produced evidence of early Neolithic times, dating to 7000 BCE.The Chalcolithic or COPPER Age is the transitional period between the Neolithic and the Bronze Age.The period of the Copper Age was from 1800 A.D-800 BC.The presence of painted pottery is a hallmark of the Chalcolithic period.