What is celebrated on Syttende Mai in Norway?

Syttende Mai (May 17), also known as Grunnlovsdagen (Constitution Day), is the national day of Norway. It commemorates the signing of the Eidsvoll constitution on May 17, 1814, which established Norway's foundational legal framework.123

During this festive occasion, Norwegians celebrate their national identity and history. It is common for people to wear traditional folk costumes known as bunad, and performances of folk singing are held throughout the country. The celebration originated in the 1820s as a national demonstration of independence and resistance against attempts by the Swedish king to exert control over Norway. Despite early efforts by the monarchy to outlaw the event, it became a firmly established tradition by the 1830s.12