Step 1: Understanding the Concept:
The World Trade Organization (WTO) is the body that sets and enforces the rules for trade between countries. It replaced an older, less formal system called GATT (General Agreement on Tariffs and Trade).
Step 2: Fixing the date.
The WTO was established on 1 January 1995, following the Uruguay Round of trade talks, and is headquartered in Geneva, Switzerland.
Final Answer:
The World Trade Organization was set up in 1995.