Hawaii, having the distinction of being one of the only areas that the United States having been taken within it’s borders that had a reigning monarch at one time and diplomatic relationships throughout the world, the flag of Hawaii represents this. It is the only state flag that has the Union Flag of Great Britain in featured prominently and was used during its time as a Kingdom, republic and territory. A day to celebrate the flag of Hawaii was established as recently as 1990. Happy Ka Hae Hawaii!