Which factor helped Astoria become a major fur-trading post? O Astoria was situated on the mouth of the Columbia River.
O Astoria was defended by stone fortifications and heavy artillery.
O Astoria was a lawless place with a thriving black market.
O Astoria was situated on the mouth of the Missouri River.

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.