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