This chapter analyzes the 1848 Revolution and its impact on the development of the materialist view of history, exploring how Marx synthesizes the experiences of the French and German revolutions to further refine his materialist view of history. First, Marx examines the collapse of abstract humanitarian principles during the 1848 Revolution. Secondly, he investigates the inevitability of social revolution, identifying the fundamental contradiction between productive forces and production relations as its root cause. He famously proclaims that “revolutions are the locomotives of history,” emphasizing their role as a powerful driving force for social progress. Thirdly, Marx conducts a historical materialist examination of the state, tracing France’s political evolution from the “social republic” of the February Revolution to Bonaparte’s imperial regime, and concluding that proletarian revolution must dismantle the bourgeois state machinery and establish proletarian dictatorship. Finally, Marx expounds on the relationship between the Subject and the Object. While people make their own history, they do so within given constraints. Criticizing both the hero-worship that exaggerates individual roles and the fatalism that denies human agency, Marx stresses that historical figures’ significance is determined by their historical context and class relations. In summary, the experiences of the 1848 Revolution deepen the materialist view of history in areas including class struggle, social revolution, and historical figure assessment, thereby laying a solid theoretical foundation for proletarian revolutionary theory.