1992 ⟶ Maastricht Treaty Signed, Establishing the European Union
February 7: The Maastricht Treaty is signed, creating the Eu...Year
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🇪🇺 Formation of the European Economic Community
March 25: Treaty of Rome, which would eventually lead to the European Union.⟶

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🇪🇺 Greece Enters the European Communities
January 1: Greece joins the European Communities.⟶

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🇪🇺 Maastricht Treaty Signed, Establishing the European Union
February 7: The Maastricht Treaty is signed, creating the European Union.⟶

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🇪🇺 Maastricht Treaty Enters into Force
November 1: The Maastricht Treaty comes in to effect.⟶
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🇪🇺 EU Member States Sign the Treaty of Lisbon
December 13: 27 EU member states sign the Treaty of Lisbon, with the treaty coming into effect on December 1, 2009.⟶

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🇬🇧 United Kingdom Formally Withdraws from the European Union
January 31: The United Kingdom formally withdraws from the European Union.⟶

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