The modern Constitution of the Netherlands is signed.

The Constitution of the Kingdom of the Netherlands of 24 August 1815 is one of two fundamental documents governing the Kingdom of the Netherlands as well as the fundamental law of the Netherlands proper. The Kingdom of the Netherlands also includes Aruba, Curaçao and Sint Maarten: there is an overarching instrument of the entire kingdom that has constitution characteristics: the Charter for the Kingdom of the Netherlands. Sint Maarten is the only country in the Kingdom of the Netherlands that has a constitutional court to govern the Sint Maarten legislature.