Karl Marx was a German philosopher who developed the theories of communism, socialism and Marxism. He believed that history is determined by class struggle and conflicts between social classes, and that under capitalism the bourgeoisie exploit the proletariat. Marx wrote influential works such as The Communist Manifesto and Das Kapital which formed the basis of Marxism and analyzed the capitalist mode of production. Marx saw communism as the final stage in history where private property is abolished and society is organized for the common good of all people.