The trend of European unification has a long history and reached its climax after the Second World War. 1946 In September, British Prime Minister Churchill proposed the establishment of a "United States of Europe". 1950 on may 9th, French foreign minister robert schumann put forward the European coal and steel * * * plan (Schumann plan), aiming at binding Germany. 195 18 April 18, France, Italy, the federal Republic of Germany, the Netherlands, Belgium and Luxembourg signed the Treaty on the Homomorphism of Coal and Steel in Europe for 50 years. On June 1955 and 1, the foreign ministers of six countries participating in the isomorphism of coal and steel in Europe held a meeting in Messina, Italy, suggesting that the isomorphism principle of coal and steel should be extended to other economic fields and a common market should be established. 1957 On March 25th, the foreign ministers of the six countries signed two treaties in Rome, namely the Treaty of Rome, which established the European economic isomorphism and the European atomic energy isomorphism and took effect on June 25th, 1958 and 1. 1On April 8, 965, the six countries signed the Brussels Treaty, and decided to unify the European coal and steel isomorphism, the European atomic energy isomorphism and the European economic isomorphism, collectively referred to as the European isomorphism. The treaty entered into force on July 1967. Eurovision is headquartered in Brussels, Belgium. 1991121The European Maastricht Summit adopted the Treaty on the European Union (commonly known as the Maastricht Treaty, for short, "Mayo") establishing the European Economic and Monetary Union and the European Political Union. 1 992 February1day, foreign ministers of various countries formally signed the Mayo. With the approval of EU member states, the Maastricht Treaty came into force on June 1 993165438+10/0, and the EU began to make a transition to the EU. 1 993165438+1October1The Maastricht Treaty came into effect and the European Union was renamed the European Union. This marks the transformation of Europe from an economic entity to an economic and political entity. 1995, Austria, Sweden and Finland joined, and the number of EU member States expanded to 15. After the founding of the European Union, the economy developed rapidly. From 1995 to 2000, the economic growth rate was 3%, and the per capita GDP rose from 197 to 1900. The EU's total economic output increased from about 6.7 trillion dollars in 1993 to nearly 10 trillion dollars in 2002.

On June 8, 2002, 165438+ 10/5, the EU foreign ministers' meeting decided to invite 10 Central and Eastern European countries, including Cyprus, Hungary, Czech Republic, Estonia, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia, to join the EU. On April 6, 2003, at the EU Summit held in Athens, Greece, the above-mentioned 10 countries formally signed the accession agreement. On May 1 day, 2004, these 10 countries officially became members of the European Union. This is the fifth enlargement in the history of the European Union, and it is also the largest enlargement. From June 5438 to October 2007 10, Romania and Bulgaria joined the European Union. After six expansions, the European Union has become the strongest and most integrated national union in the world, covering 27 countries with a total population of over 480 million. & gt& gt

In July 2003, the plenary session of the Preparatory Committee for the Constitution of the European Union reached an agreement on the EU flag, national anthem, inscription and celebration day. According to the draft constitution, the flag of the European Union remains the current blue background and the pattern of 65,438+02 yellow stars. The song of the Union is Ode to Joy in Beethoven's Ninth Symphony, with the inscription "Pluralism", and May 9th is "Europe Day".