Anecessary precondition for a neolithic village to become a civilization in prehistory was the practice of a religion use of metals for tools and weapons construction of walls for defense production of an agricultural surplus nextreset

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

The answer is forindependence.