Stone Age
The Stone Age was a broad prehistoric period during which stone was widely used to make implements with an edge, a point, or a percussion surface. The period lasted roughly 3.4 million years and ended between 8700 BCE and 2000 BCE with the advent of metalworking.
| Links | https://en.wikipedia.org/wiki/Stone_Age |
About/Subject 3
 | The Neolithic Cultures of the British Isles | Hardback |
 | Larousse Encyclopedia of Ancient and Medieval History | Paperback |
 | Stone Age Man in Britain | Hardback |