Partition of Ireland
The partition of Ireland () divided the island of Ireland into two distinct jurisdictions, Northern Ireland and Southern Ireland. It took place on 3 May 1921 under the Government of Ireland Act 1920. Today the former is still known as Northern Ireland and forms part of the United Kingdom, while the latter is now a sovereign state also named Ireland and sometimes called the Republic of Ireland.
Postcolonial literature
A war of independence in the early 20th century was followed by the partition of the island, creating the Irish Free State in 1922, which became increasingly sovereign over the following decades, and Northern Ireland, which remained a part of the United Kingdom.