Crosses in heraldry Crowns. Several national flags are based on late medieval war flags, including the white-on-red crosses of the flag of Denmark and the flag of Switzerland. The elongated Nordic cross originates in the 18th century due to the rectangular shape of maritime flags. The Red Cross flag originates in 1906 as a colour-switched version of the flag of Switzerland. Crosses in heraldry The cross is a basic design of two intersecting lines (X) used from pre-historic times. Its use was enormously expanded as the Christian cross, from about the 6th century, deriving from a T-shape representing the gibbet ("stauros", "crux") of
Nordic Cross flag Finland (1917); some of the subdivisions of these countries used this as inspiration for their own flags. The Norwegian flag was the first Nordic cross flag with three colours. All Nordic flags may be flown as gonfalons as well. Note that some of these flags are historical. Also, note that flag proportions may vary between the different flags and sometimes even between different versions of the same flag. The Flag of Greenland is the only national flag of a Nordic country or territory without a Nordic Cross. When Greenland was granted home rule, the present flag - with a graphic