January 1, Austria, Finland, and Sweden join. November 1, Maastricht Treaty comes into effect. July 1, Single European Act comes into effect. December Single European Act agreed takes two years to ratify. February Draft Treaty on European Union produced. March Agreement to create the European Monetary System. March First meeting of the European Council, where heads of state gather to discuss events. October Paris Summit agrees on plans for the future, including economic and monetary union and ERDF fund to support depressed regions. April Agreement for EEC to raise own funds through levies and customs duties. July 1, Full customs union created in the EEC, ahead of schedule. January Luxembourg Compromise gives majority vote on some issues, but leaves national veto on key areas. January Franco-German Treaty of Friendship they agree to work together on many policy issues. January 1, Treaties of Rome come into effect. May Council of Europe formed to discuss closer co-operation.Īugust France rejects the EDC treaty. Updated February 05, September Churchill calls for a United States of Europe based around France and Germany to increase the chance of peace. He is the author of the History in an Afternoon textbook series. Robert Wilde is a historian who writes about European history. Follow this timeline to learn about the series of steps over decades that led to the creation of the European Union.