Yes, that's correct! In the Communist Manifesto, co-written by Karl Marx and Friedrich Engels in 1848, they assert that the driving force of historical development is class struggle. The famous opening line of the manifesto reads: "The history of all hitherto existing society is the history of class struggles." This statement encapsulates Marx's view that society has always been divided into classes with conflicting interests, such as the bourgeoisie (capitalist class) and the proletariat (working class), and that these conflicts have shaped social structures and historical events.
Marx and Engels argue that as societies evolve, these class struggles manifest in different forms, and ultimately, they believe that the proletariat will rise against the bourgeoisie, leading to the overthrow of capitalism and the establishment of a classless society. The manifesto emphasizes the importance of class consciousness and collective action among the working class as essential for achieving this transformation.