N. Europe N. America S. America Middle East
3000BC-1AD 1AD-1500AD 1500BC-1AD 3000BC-1500BC
Middle East/N. America China Europe India
500BC-1000AD 500BC-500AD 1500BC-1AD 3000BC-1500BC
Greeks Egyptians Sumerians Babylonians
Greeks Celts Indians Egyptians
To unite people record events To control natural forces Explain natural phenomena
Greeks Indians Sumerians Egyptians