In Aztec social hierarchy, people who are called "Serfs" are the ones expected to support the upper class. They belong to the lowest social class in the Aztec culture and required to do labors for the nobles. As for the Incas, "Commoners" (farmers, artisans, servants, etc.) are required to support the higher class for they do not practice slavery. Majority of Inca's population belongs to the commoner class.
Answer:
A vassal or liege subject is a person regarded as having a mutual obligation to a lord or monarch, in the context of the feudal system in medieval Europe. The obligations often included military support by knights in exchange for certain privileges, usually including land held as a tenant or fief.
<span>The conflict in west Sudan's Darfur region flared in 2003 when two rebel groups rose up against the government, accusing it of wilful neglect. Khartoum moved swiftly to crush the revolt by the Justice and Equality Movement (JEM) and the Sudan Liberation Army (SLA).</span>
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