Conversation so far:
What is the historical and geographical distribution?
The term is most often used with reference to medieval Western Europe.
Where did this originate?
Antecedents of the system can be traced to the rural economy of the later Roman Empire (Dominate).
Why was this plan implemented?
CANNOTANSWER.

Question: What was the expected outcome of this distribution?
Self-contained rewrite: What was the expected outcome of historical and geographical distribution?