Before the World Health Organisation, there was the General Agreement on Tariffs and Trade (Gatt), established at the end of the Second World War.
Its purpose was to reduce tariffs and other trade barriers and eliminate preferences on a reciprocal and mutually advantageous basis. Gatt was signed by 23 nations in Geneva on October 30, 1947 and took effect on January 1, 1948. It lasted until 123 nations in Marrakesh on April 14, 1994 signed the Uruguay Round Agreement, which established the World Trade Organization (WTO) on January 1, 1995.