The unity of the Realm is acted out in the principle of "The Unity of the Realm". This principle is derived from Article 1 of the Danish Constitution which specifies that constitutional law applies equally to all areas of the Danish Realm. The Constitutional Act specifies that sovereignty is to continue to be exclusively with the authorities of the Realm (the Danish government and parliament). Faroese or Greenlandic self-governance cannot be established by international treaties but must be established by Danish law; the Danish parliament (the Folketing) delegates a precisely defined part of its competence to the home rule authorities. The language of Denmark is
Folketing was elected by common vote, although indirectly and with a higher age limit than for the Folketing. During the next decades, law-making mainly took place in the Folketing and the Landsting came to be regarded as a superfluous rubber stamp. In 1953, a revised constitution was adopted by popular vote. Among the changes was the elimination of the Landsting and the introduction of a unicameral parliament, known only as the Folketing. Christiansborg Palace (also known by its nickname "Borgen", Danish for "the castle") has been the domicile of parliament since 1849. The palace is located in the heart of Copenhagen.