Karl Heinrich Marx was a German philosopher, critic of political economy, economist, historian, sociologist, political theorist, journalist, and socialist revolutionary. Born in Trier, Germany, Marx studied law and philosophy at the universities of Bonn and Berlin. Due to his political publications, Marx became stateless and lived in exile with his wife and children in London for decades, where he continued to develop his thought in collaboration with German thinker Friedrich Engels and publish his writings, researching in the British Museum Reading Room. Marx's political and philosophical thought had enormous influence on subsequent intellectual, economic, and political history.