The document discusses social stratification, defining it as a hierarchical system that categorizes individuals based on socio-economic factors, where inequities influence status, power, and privilege. It outlines various forms of stratification, such as slavery, caste, and class systems, alongside theories from Karl Marx and Max Weber on class relations and their influence on social mobility. The text concludes that while class divisions persist, factors like education and economic changes are reshaping opportunities for upward mobility in modern societies.