The national flag of Ireland, also known as the tricolour, is a vertical tricolour of green, white, and orange. The green is representative of the Catholic community while the orange represents the Protestant community. The white in the centre represents the peace between the two groups.
First introduced by Thomas Francis Meagher in 1848, it was not until the Easter Rising of 1916, when it was raised above the General Post Office in Dublin, that the tricolour came to be regarded as the national flag.