A book written by Karl Marx and Friedrich Engels that describes the new political system of scientific socialism, which becomes the basis for communism. The book states that all of human history is based on the conflict between the bourgeoisie (those who own the means of production) and the proletariat (working class), and predicted that the proletariat would rise up in a violent revolution to overthrow the bourgeoisie and create a society with an equal distribution of goods and services.