Bertrand Arthur William Russell, 3rd Earl Russell, OM, FRS (18 May 1872 – 2 February 1970), was a British philosopher, historian, logician, mathematician, advocate for social reform, pacifist, and prominent rationalist. A prolific writer, he was a populariser of philosophy and a commentator on a large variety of topics. Continuing a family tradition in political affairs; he was a prominent anti-war activist, championing free trade between nations and anti-imperialism. He also co-authored, with Alfred North Whitehead, Principia Mathematica, an attempt to ground Mathematics on the laws of Logic. The book has had a considerable influence on Logic, Set Theory and Analytic Philosophy. Bertrand Russell was born at the height of Britain's economic and political ascendancy. When he died almost a century later, the British Empire had all but vanished, its power had been dissipated by two world wars and its imperial system had been brought to an end. Among his post–Second World War political activities, Russell was a vigorous proponent of nuclear disarmament, antagonist to communist totalitarianism and an outspoken critic of the Vietnam War. Previously he had achieved notoriety as a "conscientious objector" during the First World War, visited the emerging Soviet Union which subsequently met with his disapproval and campaigned vigorously against Adolf Hitler in the 1930s as well as being an accomplished mathematician. In 1950, Russell was awarded the Nobel Prize in Literature, "in recognition of his varied and significant writings in which he champions humanitarian ideals and freedom of thought". Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.