Captain Con Murphy from nearMillstreet, County Cork was executed by British authorities, the first man to be executed in front of a firing squad since the 1916Easter Rising.
5 March – Irish War of Independence: Clonbanin Ambush: The Irish Republican Army killed Brigadier GeneralHanway Robert Cumming.
16–17 March – Irish War of Independence: The Irish Republican Army killed two Royal Irish Constabulary constables inClifden. TheBlack and Tans were called in and killed one civilian, seriously injured another, burned 14 houses and damaged several others.[1]
19 March – Irish War of Independence:Crossbarry Ambush: British troops failed to encircle an outnumbered column of Irish Republican Army volunteers inCounty Cork, with at least ten British and three IRA deaths.
21 March – Irish War of Independence:Headford Ambush: The Irish Republican Army killed at least nine British troops.[2]
25 May – Irish War of Independence: The Irish Republican Army occupied and burnedThe Custom House inDublin, the centre of local government in Ireland. Five IRA men were killed and over eighty captured by theBritish Army which surrounded the building.[5]
20 June – Irish War of Independence: British Major-GeneralLambert died atAthlone of a gunshot wound sustained in an IRA ambush; early on 2 July six farmhouses in the area were burned, apparently in retaliation, and the following day the IRA, in turn, burn downMoydrum Castle.[6][7]
4 July – James Craig refused to attend a peace conference in Dublin because the invitation by PresidentÉamon de Valera was addressed to him personally instead of to thePrime Minister of Northern Ireland.
10 July –Bloody Sunday: Clashes between Catholics and Protestants inBelfast resulted in 16 deaths (23 over the surrounding four-day period) and the destruction of over 200 (mostly Catholic) homes.[9]
11 July – Under the terms of the truce (signed on 9 July) which became effective at noon, the British Army agreed that there would be no provocative display of forces or incoming troops. The Irish Republican Army agreed that attacks on Crown forces would cease.
21 July - TheBelfast Pogrom began with the one-day removal of thousands of Belfast shipyard, factory and mill workers from their jobs.
16 August – Following the uncontested election for the Parliament of Southern Ireland, 125 Sinn Féinteachtaí dála assembled as theSecond Dáil at the Mansion House in Dublin. Six represented constituencies inNorthern Ireland (five of them jointly with constituencies in the South).
23 August – The Northern Cabinet agreed thatStormont Castle would be the permanent site of the Northern Houses of Parliament.
8 September – Lloyd George's final offer was delivered to Éamon de Valera. Sinn Féin was invited to discuss the proposals which would grant limited sovereignty within the British Empire.
1 November –Frances Kyle andAveril Deverell were called to the Bar of Ireland, becoming the first female barristers in Britain or Ireland.
6 December – Agreement was reached in the Anglo-Irish Treaty negotiations in London. The main points included the creation of anIrish Free State within theCommonwealth, anOath of Allegiance to the Crown, and retention by the British naval services of the use of certainIrish ports.
December – Éamon de Valera accused the Irish delegation to London of having ignored its instructions. Arthur Griffith accused de Valera of knowing at the time that a Republic could not be achieved.
24 February –Terence MacSwiney's playThe Revolutionist (set and published in 1914) had its stage premiere posthumously at the Abbey Theatre.[11] His writingsPrinciples of Freedom were collected fromIrish Freedom (1911–12) and published this year also.
Ina Boyle's pastoral for orchestraColin Clout premiered.
George Moore published the novelHeloise and Abelard.
L. A. G. Strong published the poetryDublin Days (in Oxford).
^Villiers-Tuthill, Kathleen (2006).Beyond the Twelve Bens — a history of Clifden and district 1860-1923. Connemara Girl Publications. pp. 177,209–213.ISBN978-0-9530455-1-8.
^O'Halpin, Eunan & Ó Corráin, Daithí (2020),The Dead of the Irish Revolution, Yale University Press, pgs 350-352
^Statutory Rules & Orders published by authority, 1921, No. 533
^Jackson, Alvin (2004).Home Rule – An Irish History. Oxford University Press. p. 198.
^Foy, Michael T. (2006).Michael Collins's Intelligence War: the struggle between the British and the IRA, 1919–1921. Stroud: Sutton. pp. 214–218.ISBN0-7509-4267-3.
^Ward, Alan J. (1994).The Irish Constitutional Tradition: Responsible Government and Modern Ireland 1782–1922. Washington, D.C.: Catholic University Press of America. pp. 103–110.ISBN0-8132-0793-2.
