The Banner o Iceland (Icelandic: Íslenski fáninn) wis offeecially describit in Law No. 34, set oot on 17 Juin 1944, the day Iceland became a republic. The law is entitled "The Law o the Naitional Banner o Icelanders an the State Airms" an describes the Icelandic banner as follaes:
Iceland's first naitional banner wis a white cross on a deep blue backgrund. It wis first shawn in parade in 1897. The modren banner dates frae 1915, when a reid cross wis insertit intae the white cross o the oreeginal banner. This cross represents Christianity.[1][2] It wis adoptit in 1918 an became the naitional banner when Iceland gained unthirldom frae Denmark in 1944. For the Icelandic fowk the banner's colourin represents a vision o thair kintra's landscape. The colours staund for 3 o the elements that mak up the island. Red is the fire produced bi the island's volcanoes, white recaws the ice an snaw that covers Iceland, an blue for the Atlantic Ocean.
Many predominantly Christian states show a cross, symbolising Christianity, on their national flag. Scandinavian crosses or Nordic crosses on the flags of the Nordic countries–Denmark, Finland, Iceland, Norway and Sweden–also represent Christianity.
The Christian cross, for instance, is one of the oldest and most widely used symbols in the world, and many European countries, such as the United Kingdom, Norway, Sweden, Finland, Denmark, Iceland, Greece and Switzerland, adopted and currently retain the Christian cross on their national flags.