1950 Robert Schuman presents his proposal on the creation of an organized Europe, indispensable to the maintenance of peaceful relations. This proposal, known as the "Schuman declaration", is considered by some people to be the beginning of the creation of what is now the European Union.
1990 Re-unification of Germany. The German Democratic Republic ceases to exist and its territory becomes part of the Federal Republic of Germany. East German citizens became part of the ''European Community'', which later became the European Union. Now celebrated as German Unity Day.
1992 The Maastricht Treaty is signed, leading to the creation of the European Union.
1993 EU - riots in Nørrebro, Copenhagen caused by the approval of the four Danish exceptions in the Maastricht Treaty referendum. Police opened fire against civilians for the first time since World War II and injured 11 demonstrators. In total 113 bullets are fired.
1993 The Maastricht Treaty takes effect, formally establishing the European Union.
1994 In a referendum voters in Sweden decide to join the European Union.
1995 Latvia applies for membership in the European Union.
1996 The Czech Republic applies for membership of the European Union.
1996 The last occurrence of February 24 as a leap day in the European Union and for the Roman Catholic Church.
1999 The World Trade Organisation rules in favor of the United States in its long-running trade dispute with the European Union over bananas.
2002 Euro banknotes and coins become legal tender in twelve of the European Union's member states.
2002 Enlargement of the European Union: The European Union announces that Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia will become members from May 1, 2004.
2003 In a referendum, Estonia approves joining the European Union.