Karl Marx, born on May 5, 1818, in Trier, Prussia, was a philosopher, economist, historian, sociologist, political theorist, journalist, and revolutionary socialist whose ideas played a significant role in the development of modern socialism and communism. Marx studied law and philosophy, and while at the University of Berlin, he was introduced to the philosophy of G.W.F. Hegel, which Marx would later radically transform. He is best known for his analysis of history, particularly his theory of historical materialism, which holds that the history of all hitherto existing society is the history of class struggles. Marx's magnum opus 'The Capital' (Vol. 1-3) is a foundational theoretical text in materialist philosophy, economics, and politics. Marx's work in economics laid the basis for the current understanding of labor and its relation to capital, and has influenced much of subsequent economic thought. Alongside 'The Capital', Marx is known for co-authoring 'The Communist Manifesto' with Friedrich Engels, which further elucidates his theories of society, economics, and politics. Marx's literary style combines intricate scientific methodology, dialectical analysis, and an aggressive critique of capitalist society. His contribution to political theory and practice remains influential to this day, and he has been described as one of the most influential figures in human history. Marx passed away on March 14, 1883, in London, but his ideas continue to animate the quest for a more just and equitable world.