Adam Smith FRSE (baptised June 5, 1723 O.S. / June 16 N.S. – July 17, 1790) was a Scottish moral philosopher and a pioneering political economist. He is a major contributor to the modern perception of free market economics. One of the key figures of the intellectual movement known as the Scottish Enlightenment, he is known primarily as the author of two treatises: The Theory of Moral Sentiments (1759), and An Inquiry into the Nature and Causes of the Wealth of Nations (1776). The latter was one of the earliest attempts to systematically study the historical development of industry and commerce in Europe, as well as a sustained attack on the doctrines of mercantilism. Smith's work helped to build the foundation of the modern academic discipline of free market economics and provided one of the best-known intellectual rationales for free trade, capitalism, and libertarianism.