Answer:
Distribution of wealth.
Step-by-step explanation:
In the feudal system, all lands that exist in a country belonged to several lords/nobles.
The lords allowed the citizens to take care and manage the land with a profit sharing system. (but typically, the percentage that given to the citizens is really low).
After the feudal system and middle ages come to an end, the ownerships of the land that previously belonged to the lords become out for grab for any other citizens. Over the years, the land was separated into smaller area after so many groups claimed them for their own.