A Structural Perspective: Chapter one then brings to light the four social-scientific theories of revolutions. First and foremost there is the Marxist family, which seems to be the most steadfast in attempting to understand the science of social revolutions. The key to Marx's approach to revolutions is interpreting them as a class-based movement that stems from structural contradictions occurring in conflict-ridden communities. Marxists further emphasize the mode of production and class structure (pertaining to land ownership and surplus). According to Marx, the primary source of revolutionary contradiction is the appearance of disconnect between the method of production between social forces and social relations of production. This disjuncture causes an immense disconnect between classes, increasing class conflicts. Revolutions occur due to the class action that is led by a rising revolutionary class, who tend to gain the support of others. Revolutions, over all, are seen as developing from class-divided methods of production, and altering one mode of production into an entirely new one through class conflict.