Stone Age

The Stone Age is a broad prehistoric period during which stone was widely used to make implements with a sharp edge, a point, or a percussion surface. The period lasted roughly 3.4 million years, and ended between 4500 BC and 2000 BC with the advent of metalworking. Stone Age artifacts include tools used by humans and by their predecessor species in the genus Homo, as well as the earlier partly contemporaneous genera Australopithecus and Paranthropus. Bone tools were used during this period as well, but are more rarely preserved in the archaeological record. The Stone Age is further subdivided by the types of stone tools in use.

The Stone Age is the first of the three-age system of archaeology, which divides human technological prehistory into three periods:


 * The Stone Age
 * The Bronze Age
 * The Iron Age

The term Stone Age is often used to describe the civilisation level (Tech Level ) during a First Contact Situation. The Civilzation Development Evaluation Chart utilised by the Science Council uses a more specific classification system.