History of casteism is a field of academic inquiry that investigates the historical origins, evolution, manifestations, and impacts of caste systems and ideologies across different societies and time periods. This field employs historical methods, often drawing on interdisciplinary perspectives (such as sociology, anthropology, and political science), to analyze the dynamics of social stratification, power relations, and persistent inequalities rooted in caste structures. Its significance lies in providing critical historical context for understanding contemporary forms of social hierarchy, discrimination, and resistance related to caste.