Periods

Simulating Civs we should consider these eras:

• Paleolithic (260000-10000 BP)
• Mesolithic
• Neolithic
• Agricultural revolution (8000-5000 BCE)

Paleolithic

Societies are organized in bands.

Subsistence comes from gathering, hunting and scavenging.

Technology: knapped stone tools.

Different glacial and interglacial periods came.

Neolithic

the Neolithic Revolution only spreads to areas which are suitable for farming. In the jungles of the world, hunting and gathering remains the standard way of life for human communities until the 20th century. An intermediate stage, that of nomadic pastoralism (moving with the flocks to new pastures), prevails in semi-barren regions.

Sources:

http://en.wikipedia.org/wiki/History_of_the_world http://en.wikipedia.org/wiki/Paleolithic http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab63#ixzz3BCuLj5m6