How did the feudal system start?
Thereof, why was the feudal system created?
When William the Conqueror became King of England in 1066 he introduced a new kind of feudal system into Britain. William confiscated the land in England from the Saxon lords and allocated it to members of his own family and the Norman lords who had helped him conquer the country.
Keeping this in consideration, how did the feudal system work?
Under the feudal system land was granted to people for service. It started at the top with the king granting his land to a baron for soldiers all the way down to a peasant getting land to grow crops. The center of life in the Middle Ages was the manor. The manor was run by the local lord.
Under feudalism the King was answerable to the Pope. At the end of the Middle Ages King Henry VIII clashed with the Pope and England subsequently broke with the Catholic church of Rome and the power of the Pope. It was the final 'nail in the coffin' of the Medieval Feudal System, feudalism, in England.