events
The Treaty of Lisbon entered into force in the European Union.
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Treaty of Lisbon
2007 treaty amending the constitutional basis of the European Union
The Treaty of Lisbon is a European agreement that amends the two treaties which form the constitutional basis of the European Union (EU). The Treaty of Lisbon, which was signed by all EU member states on 13 December 2007, entered into force on 1 December 2009. It amends the…Source: Wikipedia (CC BY-SA)
European Union
Supranational political and economic union
The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The union has a total area of 4,233,255 km2 (1,634,469 sq mi) and an estimated population of over 450 million as of 2025. The EU is often described…Source: Wikipedia (CC BY-SA)
December 1
Day of the year
December 1 is the 335th day of the year in the Gregorian calendar; 30 days remain until the end of the year.Source: Wikipedia (CC BY-SA)