Establishment of Ireland

Date: December 29, 1937 • Location: Dublin City, Ireland

The Irish Free State is replaced by a new state called Ireland with the adoption of a new constitution.

The Irish Free State, also known by its Irish name Saorstát Éireann, was the Irish state established in December 1922 under the Anglo-Irish Treaty of December 1921, initially as a Dominion. The treaty ended the three-year Irish War of Independence between the forces of the Irish Republic—the Irish Republican Army (IRA)—and British Crown forces.