How were serfs an important part of the manor system

The villeins, or serfs, who were occupants on the land, were given the right to cultivate some of the Lord's land for their own benefit in exchange for their labor in tilling the remainder of the land for the benefit of the Feudal Lord.

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well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )