Prehistory summery.

1.What is prehistory?

It is characterized by the absence of written texts.
Three stages:

- Paleolithic: about 5 million years ago. They live from hunting and gathering.
When appears in a place agriculture and livestock we say that already they changed to the Neolithic period.

- Neolithic: 11 million years ago. They invented agriculture and livestock.

- The metal ages: about 7 thousand years ago. They began to make metal objects.