Ein feste Burg ist unser Gott
The Declaration of Christmas Peace has been a tradition in Finland from the Middle Ages every year, except in 1939 due to the Winter War. It is a custom in many towns and cities. The most famous one of these declarations is on the Old Great Square of Turku, the former capital of Finland, at noon on Christmas Eve. It is broadcast on Finnish radio (since 1935) and television, and nowadays also in some foreign countries. The declaration ceremony begins with the hymn "Jumala ompi linnamme" (Martin Luther's "A Mighty Fortress Is Our God") by a band of the Finnish Navy and a male choir and continues with the Declaration of Christmas Peace read from a parchment roll, in both Finnish and Swedish, the country's two official languages: