The two great superpowers of the twentieth century, the USA and the USSR, were born of the philosophical writings of Tom Paine and Karl Marx respectively. The modern information age would never have been possible without the work of the great logician Frege. Female suffrage was taken seriously only after Wollstonecraft. The Enlightenment stood in need of a Voltaire, Einstein needed Newton and Newton, in turn, relied on Aristotle. The history of social, political and technological change is inextricably bound to the history of thought.
