1981 ⟶ Greece Enters the European Communities

January 1: Greece joins the European Communities.
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Year
1957
1973
1981
1986
1992
1993

🇪🇺 Formation of the European Economic Community

March 25: Treaty of Rome, which would eventually lead to the European Union.⟶
Formation of the European Economic Community (1957)
European UnionEuropean IntegrationPost-WarInternational RelationsTreatyEconomic Cooperation
BelgiumBelgiumFranceFranceGermanyGermanyItalyItalyLuxembourgLuxembourgNetherlandsNetherlands

🇪🇺 Denmark, Ireland, and the United Kingdom Join the European Economic Community

January 1: Denmark, Ireland and the United Kingdom joins the European Communities.⟶
Denmark, Ireland, and the United Kingdom Join the European Economic Community (1973)
European IntegrationPost-WarCold WarInternational RelationsTradeExpansion
DenmarkDenmarkIrelandIrelandUnited KingdomUnited Kingdom

🇪🇺 Greece Enters the European Communities

January 1: Greece joins the European Communities.⟶
Greece Enters the European Communities (1981)
European UnionEuropean IntegrationPolitical AlliancesInternational RelationsEconomic DevelopmentCold WarPost-War
GreeceGreeceBelgiumBelgiumDenmarkDenmarkFranceFranceGermanyGermanyIrelandIrelandItalyItalyLuxembourgLuxembourgNetherlandsNetherlandsUnited KingdomUnited Kingdom

🇪🇺 Portugal and Spain Accede to the European Communities

January 1: Portugal and Spain joins the European Communities.⟶
Portugal and Spain Accede to the European Communities (1986)
European UnionEuropean IntegrationTradeInternational RelationsCold War
PortugalPortugalSpainSpain

🇪🇺 Maastricht Treaty Signed, Establishing the European Union

February 7: The Maastricht Treaty is signed, creating the European Union.⟶
Maastricht Treaty Signed, Establishing the European Union (1992)
European IntegrationEuropean UnionTreatyInternational RelationsPolitical UnionGlobalizationMultilateralismSovereigntyEconomic Cooperation
BelgiumBelgiumDenmarkDenmarkFranceFranceGermanyGermanyGreeceGreeceIrelandIrelandItalyItalyLuxembourgLuxembourgNetherlandsNetherlandsPortugalPortugalSpainSpainUnited KingdomUnited Kingdom

🇪🇺 Maastricht Treaty Enters into Force

November 1: The Maastricht Treaty comes in to effect.⟶
Maastricht Treaty Enters into Force (1993)
European UnionTreatyEuropean IntegrationPolitical UnionInternational Relations
BelgiumBelgiumDenmarkDenmarkFranceFranceGermanyGermanyGreeceGreeceIrelandIrelandItalyItalyLuxembourgLuxembourgNetherlandsNetherlandsPortugalPortugalSpainSpainUnited KingdomUnited Kingdom