In Marxist historiography, class struggle is regarded as the primary motor force of history.
Distinguishing characteristics of class struggle under capitalism include:
- Labour (the proletariat or workers) includes anyone who earns their livelihood by selling their labor power and being paid a wage or salary for their labor time. They have little choice but to work for capital, since they typically have no independent way to survive.
- Capital (the bourgeoisie or capitalists) includes anyone who gets their income not from labor as much as from the surplus value they appropriate from the workers who create wealth. The income of the capitalists, therefore, is based on their exploitation of the workers (proletariat).
- At this stage, production itself becomes a social enterprise.
"The history of all hitherto existing society is the history of class struggles. Freeman and slave, patrician and plebian, lord and serf, guild-master and journeyman, in a word, oppressor and oppressed, stood in constant opposition to one another...." [Marx and Engels, Communist Manifesto]