Feudalism: Feudalism was a medieval socio-economic system where landowners granted serfs protection in exchange for labor or military service. It characterized European societies prior to industrialization.
Caste System: The caste system is a hierarchical social structure found in some societies, particularly India, where individuals are born into specific castes that determine their social standing and opportunities in life.
Social Stratification: Social stratification refers to the division of society into different layers or strata based on factors like wealth, occupation, or education. It influences social mobility and access to resources within a society.