When two cultures share the same, lets say, language. Those two cultures will migrate towards each other. Another reason could be that one group of people has a lesser population than the other group, and they speak the same language or share the same way of living they will also migrate towards each other.
factor's which influences span of control. factor's which influences span of control.
factor's which influences span of control. factor's which influences span of control.
Strong fortified settlements!
push
no
Economic
laws that forced the migration of the poorer classes
decreases; increases
supply
Push factor.
The primary factor that influences the amount of kinetic energy an object possesses is its velocity.
Lack of food and warm weather