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Boyars and serfs
Nobles and Serfs. Serfs(slaves) were most of the population.
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There were many people advising the pharaoh
No there were no social classes in the Apache tribe.
Russia's social structure was a class structure that included a very powerful ruling class along with a limit on education that caused lower classes to be unable to advance. This social structure was a rigid hierarchy.
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The social classes are citizons, non-citizons, helots.
I think they eliminated social classes in Switzerland by changing the laws
Social work classes are classes taken by students aspiring to become a social worker. They deal with various situations. Most colleges have a social work program.
When you need to find out about social work classes the best place to look would be an online university. They will list the locations, and lots of information about their social work classes.
Schriebs were not members of the early Chinese social classes.