Born in Trier in the Rhineland in 1818, Karl Marx was the son of a Jewish lawyer recently converted to Christianity. As a student in Bonn and Berlin, Marx studied law and then philosophy. He joined with the Young Hegelians, the most radical of Hegel’s followers, in denying that Hegel’s philosophy could be reconciled with Christianity or the existing State. Forced out of university by his radicalism, he became a journalist and, soon after, a socialist. He left Prussia for Paris and then Brussels, where he stayed until 1848. In 1844 he began his collaboration with Friedrich Engels and developed a new theory of communism to be brought into being by a proletarian revolution. This theory was brilliantly outlined in The Communist Manifesto. Marx participated in the 1848 revolutions as a newspaper editor in Cologne. Exiled together with his family to London, he tried to make a living writing for the New York Tribune and other journals, but remained financially dependent on Engels. His researches in the British Museum were aimed at underpinning his conception of communism with a theory of history that demonstrated that capitalism was a transient economic form destined to break down and be superseded by a society without classes, private property or state authority. This study was never completed, but its first part, which was published as Capital in 1867, established him as the principal theorist of revolutionary socialism. He died in London in 1883.