Why would it be difficult to have an organized society without a system of writing?

Why did large numbers of african migrate to the americas

Many feel that the u.s. should not give money to the world bank to aid people in other countries. true or false

Plz answer ! find the alps. what countries and country borders intersect this major mountain range? which borders seem to be defined by the edges of the mountains? which borders seem to be defined by the edges of the mountains? which borders cut across the mountains?