• Belgium declares its independence from the Netherlands.

  • The Benelux Economic Union is created between Belgium, the Netherlands, and Luxembourg to promote free movement of workers, goods, and services.

  • A formal linguistic border is established, with the northern part of the country designated as Dutch speaking and the southern part designated as French speaking.

  • Belgium ratifies the Maastricht Treaty, which creates the European Union.

  • Belgium is divided into three separate administrative regions: the Dutch speaking area of Flanders, the French speaking area of Wallonia, and the capital Brussels.

  • The euro replaces the Belgian franc as Belgium's currency.

Sources:

BBC News open_in_new
Britannica open_in_new