This document outlines a twelve-week course on the law and policy of the global trading system, focusing on the historical development leading to the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization (WTO). It covers key events such as the 1916 Paris Economy Pact, the Great Depression, and the Reciprocal Trade Agreements Act of 1934, as well as post-WWII economic planning, the Bretton Woods Conference, and the negotiations leading to the GATT. Ultimately, it discusses the lack of ratification of the International Trade Organization (ITO) and the subsequent success of GATT, setting the stage for the establishment of the WTO in 1995.