Revenue stamps of Northern Ireland
Upon the partition of Ireland in 1921, separate revenue stamps began to be issued for both Northern Ireland and Southern Ireland. The latter were withdrawn soon afterwards upon the establishment of the Provisional Government, but the former continued to issue revenue stamps until the late 20th century. The need for separate issues for Northern Ireland came about since taxes raised there were meant to remain in the country. Most Northern Irish revenue stamps were British key types with appropriate inscriptions, but there were a number of different issues as well.
Irish literature
After 1922 Ireland was partitioned into the independent Irish Free State, and Northern Ireland, which retained a constitutional connection to the United Kingdom. Northern Ireland has for several centuries consisted of two distinct communities, Protestant, Ulster Scots and Irish Catholics. While the Protestants majority emphasise the constitutional ties to the United Kingdom, most Catholics would prefer a United Ireland. The long-standing cultural and political division led to sectarian violence in the late 1960s known as The Troubles, which officially ended in 1998, though sporadic violence has continued. This cultural division created, long before 1922, two distinct literary cultures.