Political map of Ireland
Northern and Southern Ireland
Result in Ireland of the December 1910 United Kingdom general election showing a large majority for the Irish Parliamentary Party.
David Lloyd George, MP. The British Prime Minister was the author of the new Act.
Ulster Volunteers marching in Belfast, 1914
Result of the 1918 general election in Ireland showing the dramatic swing in support for Sinn Féin
Catholic-owned businesses destroyed by loyalists in Lisburn, August 1920
Crowds in Belfast for the state opening of the Northern Ireland Parliament on 22 June 1921
Members of the Irish negotiation committee returning to Ireland in December 1921
North East Boundary Bureau recommendations May 1923
James Craig (centre) with members of the first government of Northern Ireland
The Boundary Commission's proposed changes to the border
A republican anti-partition march in London, 1980s

It was enacted on 3 May 1921 under the Government of Ireland Act 1920.

- Partition of Ireland

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".

- Government of Ireland Act 1920
Political map of Ireland

17 related topics with Alpha

Overall

The traditional counties of Northern Ireland

Northern Ireland

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Part of the United Kingdom that is variously described as a country, province, territory or region.

Part of the United Kingdom that is variously described as a country, province, territory or region.

The traditional counties of Northern Ireland
Cannon on the Derry city walls
Scrabo Tower, County Down
Signing of the Ulster Covenant in 1912 in opposition to Home Rule
Result of the 1918 general election in Ireland
Crowds in Belfast for the state opening of the Northern Ireland Parliament on 22 June 1921
The Coat of arms of Northern Ireland used between 1924 and 1973
James Craig (centre) with members of the first government of Northern Ireland
Opening of the Northern Ireland parliament buildings (Stormont) in 1932
Responsibility for Troubles-related deaths between 1969 and 2001
First Minister Ian Paisley (DUP) centre, and deputy First Minister Martin McGuinness (Sinn Féin) left, and Scottish First Minister Alex Salmond right in 2008
A flowchart illustrating all the political parties that have existed throughout the history of Northern Ireland and leading up to its formation (covering 1889 to 2020).
Parliament Buildings at Stormont, Belfast, seat of the assembly
Unionist mural in Belfast
ESA Sentinel-2 image of Northern Ireland
Köppen climate types of Northern Ireland
Lough Neagh
Hare's Gap, Mourne Mountains
The Giant's Causeway, County Antrim
Marble Arch Caves
Goliath crane of Harland & Wolff in Belfast
An NIR C3K railcar
2011 census: differences in proportions of those who are, or were brought up, either Catholic or Protestant/Other Christians
Map of predominant national identity in the 2011 census
Map of most commonly held passport
Approximate boundaries of the current and historical English/Scots dialects in Ulster. South to north, the colour bands represent Hiberno-English, South-Ulster English, Mid-Ulster English and the three traditional Ulster Scots areas. The Irish-speaking Gaeltacht is not shown.
Percentage of people aged 3+ claiming to have some ability in Irish in the 2011 census
Percentage of people aged 3+ claiming to have some ability in Ulster Scots in the 2011 census
An Orange march
The logo for the Northern Ireland assembly is based on the flower of the flax plant.
People carrying the Irish flag, overlooking those with the unionist Ulster Banner
George Best, Northern Irish international footballer and 1968 Ballon d'Or
Peter Canavan, Tyrone captain 2003
Prominent Northern Irish golfer Rory McIlroy
Queen's University Belfast
Broadcasting House, Belfast, home of BBC Northern Ireland

Northern Ireland was created in 1921, when Ireland was partitioned by the Government of Ireland Act 1920, creating a devolved government for the six northeastern counties.

Seán Hogan's flying column of the IRA's 3rd Tipperary Brigade during the war

Irish War of Independence

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Guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (IRA, the army of the Irish Republic) and British forces: the British Army, along with the quasi-military Royal Irish Constabulary (RIC) and its paramilitary forces the Auxiliaries and Ulster Special Constabulary (USC).

Guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (IRA, the army of the Irish Republic) and British forces: the British Army, along with the quasi-military Royal Irish Constabulary (RIC) and its paramilitary forces the Auxiliaries and Ulster Special Constabulary (USC).

Seán Hogan's flying column of the IRA's 3rd Tipperary Brigade during the war
Result of the 1918 UK general election in Ireland
RIC and British Army personnel near Limerick, c.1920
West Connemara IRA flying column
Police wanted poster for Dan Breen, one of those involved in the Soloheadbeg Ambush in 1919.
Wall plaque in Great Denmark Street, Dublin where the Dublin IRA Active Service Unit was founded.
A group of RIC officers in 1917
Michael Collins
A group of "Black and Tans" and Auxiliaries in Dublin, April 1921
British soldiers and relatives of the victims outside Jervis Street Hospital during the military enquiry into the Bloody Sunday shootings at Croke Park
Aftermath of the burning of Cork by British forces
A crowd gathers at the Mansion House in Dublin in the days before the truce
Members of the Irish negotiation committee returning to Ireland in December 1921
The funeral of Michael Collins
St. Mary's Pro-Cathedral, Dublin, August 1922
Catholic-owned businesses destroyed by loyalists in Lisburn, August 1920.
Unionist leader James Craig.
The Lord Lieutenant inspecting troops outside Belfast City Hall on the day Northern Ireland's parliament first met.
A mural in Belfast depicting revenge killings by police in Belfast.
Irish republican internees at Ballykinlar Internment Camp 1920
The symbol of the Republic:
The Irish tricolour which dated back to the Young Ireland rebellion of 1848.
A symbol of British rule:
The standard of the Lord Lieutenant, using the union flag created under the Act of Union 1800.
Monument to IRA fighters in Phibsborough, Dublin
Soldiers of a British cavalry regiment leaving Dublin in 1922
Constance Markievicz was a member of the Irish Citizen Army and fought in the Easter Rising. In 1919 she was appointed Minister for Labour in the Government of the Irish Republic
Conflict deaths in Belfast 1920–1922.
50–100 deaths per km2
100–150 deaths per km2
over 150 deaths per km2

In May 1921, Ireland was partitioned under British law by the Government of Ireland Act, which created Northern Ireland.

Hazards of separation from Great Britain. Unionist postcard (1912)

Unionism in Ireland

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Political tradition on the island of Ireland that favours political union with Great Britain and professes loyalty to the British Crown and constitution.

Political tradition on the island of Ireland that favours political union with Great Britain and professes loyalty to the British Crown and constitution.

Hazards of separation from Great Britain. Unionist postcard (1912)
Detail of the Battle of Ballynahinch 1798 by Thomas Robinson. Government Yeomanry prepare to hang United Irish insurgent Hugh McCulloch, a grocer.
1899 penny print of Henry Cooke's 1841 speech in "reply to Daniel O'Connell"
William Gladstone writing legislation under pressure from the Land League. Caricature 1881.
God Save the Queen, Erin Go Bragh, Ulster Unionist Convention, Belfast, 1892
Flag of the Congested Districts Board for Ireland, 1893–1907
Unionist march in Belfast, 9 April 1912
Signing the Ulster Covenant Declaration, "Ulster Day” 1912
An Orange Order banner showing Carson the signing of the Ulster Covenant 1912
The 1918 general election result in Ireland. Sinn Féin sweeps the south and west
The Coat of Arms of the Government of Northern Ireland used between 1924 and 1973
The statue of Lord Edward Carson in front of Parliament Buildings, Stormont
Anti-Faulkner Unionist election poster
Mural for the Red Hand Commando (UVF) which, uniquely, had an Irish-language motto, Lamh Dearg Abu (Victory to the Red Hand)
Campaign against the Anglo-Irish Agreement
Detail from 2015 Sinn Féin election flyer, North Belfast
The cross of St. Patrick superimposed on the Scottish Saltire with a six-county star, Red Hand of Ulster and no crown: the "Ulster national flag" variously employed by Loyalist groups to represent an independent, or distinctly Ulster-Scot, Northern-Ireland identity.
A flowchart illustrating all the political parties that have existed throughout the history of Northern Ireland and leading up to its formation (1889 onwards). Unionist parties are in orange.

Since Partition (1921), as Ulster Unionism its goal has been to maintain Northern Ireland as part of the United Kingdom and to resist a transfer of sovereignty to an all-Ireland republic.

In the hope of brokering a compromise that might yet hold Ireland within Westminster's jurisdiction, the Government proceeded with the Government of Ireland Act 1920.

Ulster

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One of the four traditional Irish provinces.

One of the four traditional Irish provinces.

Ulster (coloured), showing Northern Ireland in pink and the Republic of Ireland part in green
A bronze statue commemorating The Flight of the Earls at Rathmullan in north County Donegal.
A modern Protestant mural in Belfast celebrating Oliver Cromwell and his activities.
Royal Avenue, Belfast. Photochrom print circa 1890–1900.
The results of the 1918 Irish general election, in which Sinn Féin and the Irish Parliamentary Party won the majority of votes on the island of Ireland, shown in the color green and light green respectively, with the exception being primarily in the East of the province of Ulster.
At White Park Bay
Countryside west of Ballynahinch
Mourne country cottage
The track of the County Donegal Railways Joint Committee (CDRJC) restored next to Lough Finn, near Fintown station.
The approach of autumn, Tardree forest

This, and the subsequent Irish War of Independence, led to the partition of Ireland.

Partition of Ireland, first mooted in 1912, was introduced with the enactment of the Government of Ireland Act 1920, which gave a form of "Home rule" self-government to two areas, Southern Ireland, with its capital at Dublin, and "Northern Ireland", consisting of six of Ulster's central and eastern counties, both within a continuing United Kingdom of Great Britain and Ireland.

Irish Republic

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Unrecognised revolutionary state that declared its independence from the United Kingdom in January 1919.

Unrecognised revolutionary state that declared its independence from the United Kingdom in January 1919.

Territory claimed by the Irish Republic
A retouched copy of the original Proclamation.
Territory claimed by the Irish Republic
Signatures on the Anglo-Irish Treaty

The island had been partitioned by the Government of Ireland Act 1920, and the six counties of Northern Ireland, which had been partitioned so as to create and ensure a unionist majority, exercised their right under the treaty to opt out of the Free State, and remain in the United Kingdom.

Government of Ireland Act 1914

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The Government of Ireland Act 1914 (4 & 5 Geo.

The Government of Ireland Act 1914 (4 & 5 Geo.

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.

Southern Ireland (1921–1922)

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Map of Northern and Southern Ireland.

Southern Ireland (Deisceart Éireann) was the larger of the two parts of Ireland that were created when Ireland was partitioned by the Government of Ireland Act 1920.

Political map of Ireland

The Troubles

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Ethno-nationalist conflict in Northern Ireland that lasted about 30 years from the late 1960s to 1998.

Ethno-nationalist conflict in Northern Ireland that lasted about 30 years from the late 1960s to 1998.

Political map of Ireland
A "peace line" in Belfast, 2010, built to separate nationalist and unionist neighbourhoods
The Battle of the Boyne (12 July 1690) by Jan van Huchtenburg
The Ulster Covenant was issued in protest against the Third Home Rule Bill in September 1912.
The Proclamation of the Irish Republic was issued during the Easter Rising of April 1916.
Irish Boundary Commission final report map (1925) – religious distribution. The green areas signify catholic majority areas, the red areas signify non-catholic majority areas.
Sir James Craig, 1st Prime Minister of Northern Ireland, who said, "All I boast is that we are a Protestant Parliament and Protestant State".
A UVF mural in Belfast
A monument to Northern Ireland's first civil rights march
Loyalist banner and graffiti on a building in the Shankill area of Belfast, 1970
The Irish National Liberation Army began operations in the mid 1970s.
Republican mural in Belfast commemorating the hunger strikes of 1981
British Army in South Belfast, 1981
Grand Brighton Hotel after the IRA bomb attack in October 1984
'Sniper at Work' sign in Crossmaglen
Police officers looking at a burned van used by the IRA in the 1991 mortar attack on 10 Downing Street
The destruction caused by the Docklands bombing in London, 1996
A republican mural in Belfast during the mid-1990s bidding "safe home" (Slán Abhaile) to British troops. Security normalisation was one of the key points of the Good Friday Agreement.
A republican mural in Belfast with the slogan "Collusion is not an illusion"
Orangemen marching in Bangor on the Twelfth of July 2010
A watchtower at a heavily fortified RUC base in Crossmaglen
A "peace line" at the back of a house on Bombay Street, Belfast
Responsibility for Troubles-related deaths between 1969 and 2001
Troubles deaths by area
North East Boundary Bureau recommendations May 1923

A key issue was the status of Northern Ireland.

The Government of Ireland Act 1920 partitioned the island of Ireland into two separate jurisdictions, Southern Ireland and Northern Ireland, both devolved regions of the United Kingdom.

Map of Ireland in 1609 showing the major Plantations of Ireland

Irish republicanism

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Political movement for the unity and independence of Ireland under a republic.

Political movement for the unity and independence of Ireland under a republic.

Map of Ireland in 1609 showing the major Plantations of Ireland
Wolfe Tone circa 1794. Tone is considered by many as the father of Irish Republicanism
The Battle of Killala marked the end of the rising
Michael Dwyer
Depiction of Robert Emmet's trial
William Smith O'Brien, leader of the Young Ireland movement
Some of the founding members of the Irish Republican Brotherhood
A depiction of the Easter Rising
Seán Hogan's IRA flying column during the Irish War of Independence.
The funeral procession of Irish republican politician Martin McGuinness, Derry, Northern Ireland

This territory of Northern Ireland, as established by the Government of Ireland Act 1920, had its own provincial government which was controlled for 50 years until 1972 by the conservative Ulster Unionist Party (UUP).

A variant of this is Irish republican legitimism, which also rejects the Republic of Ireland because of its tacit acceptance of partition and continuing British rule in Northern Ireland.

Parliament Buildings at Stormont, in Belfast, seat of the Northern Ireland Assembly

Good Friday Agreement

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Chéasta or Comhaontú Bhéal Feirste; Ulster-Scots: Guid Friday Greeance or Bilfawst Greeance), is a pair of agreements signed on 10 April 1998 that ended most of the violence of The Troubles, a political conflict in Northern Ireland that had ensued since the late 1960s.

Chéasta or Comhaontú Bhéal Feirste; Ulster-Scots: Guid Friday Greeance or Bilfawst Greeance), is a pair of agreements signed on 10 April 1998 that ended most of the violence of The Troubles, a political conflict in Northern Ireland that had ensued since the late 1960s.

Parliament Buildings at Stormont, in Belfast, seat of the Northern Ireland Assembly
The offices of the North/South Ministerial Council on Upper English Street, Armagh, Northern Ireland
A 'Yes' campaign poster for the Good Friday Agreement during simultaneous referendums in Northern Ireland and in the Republic of Ireland.
Anti-Northern Ireland Protocol poster. Main Street, Larne March 2021

As part of the agreement, the British parliament repealed the Government of Ireland Act 1920 (which had established Northern Ireland, partitioned Ireland and asserted a territorial claim over all of Ireland) and the people of the Republic of Ireland amended Articles 2 and 3 of the Constitution of Ireland, which asserted a territorial claim over Northern Ireland.