Marx, in his theory of historical materialism, argues that political and historical events arise from the conflict of social forces. His theory focuses on class struggles and human attempts to control and dominate the natural environment. The profits obtained by capitalists are the result of the exploitation of workers. This conflict will lead to a revolution in which the workers will control the state. Therefore, capitalism will be replaced by socialism. The result is freedom for all. In the Soviet Union, the lower class overthrew the ruling class and created a new mode of production. This new economic base then brought about political, social and ideological changes in his society. The failure of the Soviet Union affects the validity of Marxian historical materialism because it discredits materialism