Founding of the Benelux Economic Union, creating a testing ground for a later European Economic Community.

The Benelux Union or Benelux is a politico-economic union, alliance and formal international intergovernmental cooperation of three neighbouring states in Western Europe: Belgium, the Netherlands, and Luxembourg. The name is a portmanteau formed from joining the first few letters of each country's name and was first used to name the customs agreement that initiated the union. It is now used more generally to refer to the geographic, economic, and cultural grouping of the three countries.

The European Economic Community (EEC) was a regional organisation created by the Treaty of Rome of 1957, aiming to foster economic integration among its member states. It was subsequently renamed the European Community (EC) upon becoming integrated into the first pillar of the newly formed European Union (EU) in 1993. In the popular language, the singular European Community was sometimes inaccurately used in the wider sense of the plural European Communities, in spite of the latter designation covering all the three constituent entities of the first pillar. The EEC was also known as the European Common Market (ECM) in the English-speaking countries, and sometimes referred to as the European Community even before it was officially renamed as such in 1993. In 2009, the EC formally ceased to exist and its institutions were directly absorbed by the EU. This made the Union the formal successor institution of the Community.

February 3 is the 34th day of the year in the Gregorian calendar; 331 days remain until the end of the year.