The caste systems dates back to the Aryan and Dasas time period. It was used to classify where you stood in the classes or social ranking. There are four classes priest, warriors, traders, and peasants.
November 2007 - Is It Time to End Affirmative Action? In recent years, one focus of the debate over affirmative action in the United States has been its use in education, especially race-based admissions policies at universities.