In the old and new stone ages people were self-sufficient. The only necessities were food and shelter. Thus the only skills that were needed were in regard to gathering, hunting, farming and finding a cave. Life was simple. Then came civilizations. Civilizations brought new necessities for people. Jobs, complex governments etc... This broadened people's horizons. It also made life more complicated. The change from the Old and New Stone Ages to Civilization does not indicate progress. People were concerned about how much power and land they had. This laid the foundation for war. This is not progress. Progress is when everyone benefits from a certain discovery or change.

In the old and new stone ages there was not enough technology that one person could not master all of them. Stones used for throwing, sharp bones for hitting and stabbing, and seeds for planting. People did not need other...