About Day of Valdemar and Reunion day
Celebration of Valdemar II of Denmarks victory in a battle in Estonia in 1219, at which Denmarks national flag Dannebrog fell from the skies. It is also the date on which Danes celebrate that Sønderjylland in 1920 was reunited with the rest of Denmark after a referendum, thus held in high regard in that part of the country.
