Ireland has only one national flag. The national flag of Ireland, also known as the Irish tricolor flag, is a horizontal rectangle with an aspect ratio of 2: 1. From left to right, it consists of three parallel and equal vertical rectangles: green, white and orange. In 848, the Irish tricolor flag was first raised on public occasions. 19 16, Ireland first adopted the tricolor flag as a national symbol. 1922, the Irish Free State began to use this flag as the national flag. 1937, Ireland declared the establishment of * * * and independence, and granted the flag the status of national flag through the Constitution. The national flag of Ireland symbolizes the desire of the people of all ethnic groups on the island of Ireland to unite.