Southern Ireland (1921–1922) in the context of "Northern Ireland"

The Government of Ireland Act 1920 (10 & 11 Geo. 5. c. 67) was an act of the Parliament of the United Kingdom. The Act's long title was "An Act to provide for the better government of Ireland"; it is also known as the Fourth Home Rule Bill or (inaccurately) as the Fourth Home Rule Act and informally known as the Partition Act. The Act was intended to partition Ireland into two self-governing polities: the six north-eastern counties were to form "Northern Ireland", while the larger part of the country was to form "Southern Ireland". Both territories were to remain part of the United Kingdom of Great Britain and Ireland and provision was made for their future reunification through a Council of Ireland. The Act was passed by the British Parliament in November 1920, received royal assent in December and came into force on 3 May 1921.

The smaller Northern Ireland was duly created with a devolved government and remained in the UK. The larger Southern Ireland was not recognised by most of its citizens, who instead recognised the self-declared Irish Republic in the ongoing Irish War of Independence. The conflict resulted in the Anglo-Irish Treaty in December 1921. Under the treaty, Ireland would leave the UK (with the option for Northern Ireland to opt out and remain in the UK, which it immediately did) in December 1922 and become the Irish Free State, which would later evolve into today's Republic of Ireland. The institutions set up under this Act for Northern Ireland continued to function until they were suspended by the British parliament in 1972 as a consequence of the Troubles.

The Provisional Government of Ireland (Irish: Rialtas Sealadach na hÉireann) was the provisional government for the administration of Southern Ireland from 16 January 1922 to 5 December 1922. It was a transitional administration for the period between the ratification of the Anglo-Irish Treaty and the establishment of the Irish Free State. Its legitimacy was disputed by the Anti-Treaty members of Dáil Éireann.

The Government of Ireland Act 1914 (4 & 5 Geo. 5. c. 90), also known as the Home Rule Act, and before enactment as the Third Home Rule Bill, was an Act passed by the Parliament of the United Kingdom intended to provide home rule (self-government within the United Kingdom) for Ireland. It was the third such bill introduced by a Liberal government during a 28-year period in response to agitation for Irish Home Rule.

The Act was the first law ever approved by the Parliament of the United Kingdom that provided for a devolved government in any part of the UK proper (as opposed to colonial territories). However, the implementation of both it and the equally controversial Welsh Church Act 1914 was formally postponed for a minimum of twelve months with the beginning of the First World War. The continuation of the war beyond 1915 and subsequent developments in Ireland resulted in further postponements, meaning that the Act never became effective; it was finally superseded by a fourth home rule bill, enacted as the Government of Ireland Act 1920, which partitioned Ireland, creating Northern Ireland and Southern Ireland, both intended to have Home Rule.

The Council of Ireland was a statutory body established under the Government of Ireland Act 1920 as an all-Ireland law-making authority with limited jurisdiction, initially over both Northern Ireland and Southern Ireland, and later solely over Northern Ireland. It had 41 members: 13 members of each of the Houses of Commons of Southern Ireland and of Northern Ireland; 7 members of each of the Senates of Southern Ireland and of Northern Ireland; and a President chosen by the Lord-Lieutenant of Ireland. It never met and was abolished in 1925.

General elections took place in Ireland on 24 May 1921 to elect members of the House of Commons of Northern Ireland and the House of Commons of Southern Ireland. These legislatures had been established by the Government of Ireland Act 1920, which granted Home Rule to a partitioned Ireland within the United Kingdom.

The Ulster Unionist Party (UUP) won a landslide majority in Northern Ireland. In the area designated as Southern Ireland, Sinn Féin candidates were elected unopposed in 124 of the 128 seats.