Analysis of information sources in references of the Wikipedia article "Nordic cross flag" in Simple English language version.
Legend states that a red cloth with the white cross simply fell from the sky in the middle of the 13th-century Battle of Valdemar, after which the Danes were victorious. As a badge of divine right, Denmark flew its cross in the other Scandinavian countries it ruled and as each nation gained independence, they incorporated the Christian symbol.
Many predominantly Christian states show a cross, symbolising Christianity, on their national flag. The so-called Scandinavian crosses or Nordic crosses on the flags of the Nordic countries–Denmark, Finland, Iceland, Norway and Sweden–also represent Christianity.
Legend states that a red cloth with the white cross simply fell from the sky in the middle of the 13th-century Battle of Valdemar, after which the Danes were victorious. As a badge of divine right, Denmark flew its cross in the other Scandinavian countries it ruled and as each nation gained independence, they incorporated the Christian symbol.
Many predominantly Christian states show a cross, symbolising Christianity, on their national flag. The so-called Scandinavian crosses or Nordic crosses on the flags of the Nordic countries–Denmark, Finland, Iceland, Norway and Sweden–also represent Christianity.