Answer: False. In order to become member of society, person has to interact with society. He has to be involve in its everyday activities to a member let alone an effective member. A person who does not do this cannot be counted as a member of society if he has done anything for it.
The Bubonic plague and the raids by Vikings.
Answer:
Serfs
Explanation:
Slavery became increasingly uncommon through the Middle Ages replaced by serfdom by the 10th century