Indentured Servitude: Indentured servitude refers to an agreement in which an individual willingly bound themselves to work for a certain number of years in exchange for something like passage to a new land or repayment of debt.
Serfdom: Serfdom was a form of bonded labor that prevailed in feudal societies where peasants were tied to the land they worked on and had limited personal freedoms.
Caste System: The caste system refers to a hierarchical social structure found in some societies, such as India, where individuals are born into specific social groups with predetermined roles and limited mobility.