Classism started to be practiced around the 18th century. Segregation into classes was accomplished through observable traits (such as race or profession) that were accorded varying status and privileges. Feudal classification systems might include merchant, serf, peasant, warrior, priestly, and noble classes.
Who introduced classism?
Karl Marx. The theory of class is at the centre of Marx's social theory, for it is the social classes formed within a particular mode of production that tend to establish a particular form of state, animate political conflicts, and bring about major changes in the structure of society.
Is classism a social issue?
A common, yet overlooked, social justice issue is classism. Classism is a social pattern in which the wealthy people gather with each other and oppress those who are less fortunate. ... Classism is an issue where the upper class (the wealthier class) excludes the lower class from being even the same type of person as them.