Karl Marx (5 May 1818 – 14 March 1883) was a philosopher, economist, historian, political theorist, sociologist, journalist and revolutionary socialist.

Born in Trier to a middle-class family, Marx later studied political economy and Hegelian philosophy. As an adult, Marx became stateless and spent much of his life in London, England, where he continued to develop his thought in collaboration with German thinker Friedrich Engels and published various works. His two most well-known are the 1848 pamphlet The Communist Manifesto and the three-volume Das Kapital. His work has since influenced subsequent intellectual, economic and political history.

Following the death of his wife Jenny in December 1881, Marx developed a catarrh that kept him in ill health for the last 15 months of his life. It eventually brought on the bronchitis and pleurisy that killed him in London on 14 March 1883 (age 64), dying a stateless person. Family and friends in London buried his body in Highgate Cemetery (East), Highgate, London on 17 March 1883 in an area reserved for agnostics and atheists (George Eliot's grave is nearby). There were between nine and eleven mourners at his funeral.

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