horizontally divided blue-yellow national flag. Its width-to-length ratio is 2 to 3.More than a thousand years ago a powerful state, Kievan Rus, was founded in an area that is now part of Ukraine. National flags did not exist at that time, but Kievan Rus used as its symbol a trident head, which was resurrected when Ukraine became independent in 1918 and in 1991. The first national flag for Ukraine was adopted in 1848 by revolutionaries who wanted its western parts to be freed from Austro-Hungarian rule. They based their flag, consisting of equal horizontal stripes of yellow over blue, on