Major-General Sir John Maxwell arrives in Dublin to take command of the British Army, 12,000 of whose troops are now in the city; the centre is cordoned off.
1 May – the Easter Rising collapses. Sir John Maxwell, Commander-in-Chief of the British forces announces that all involved in the insurrection have surrendered.
5 May – John MacBride, another leader of the Rising, is executed today. W. T. Cosgrave is sentenced to death, however, this is later commuted to penal servitude for life.
12 May – two more leaders, Seán Mac Diarmada and James Connolly are executed. Connolly, who was wounded in the fighting, is strapped to a chair and shot. Meanwhile, Prime Minister H. H. Asquith arrives in Dublin for a week-long visit.
15 May – the trial of Roger Casement begins in London. He is charged with high treason for his part in the Easter Rising.
17 May – Thomas O'Dwyer, Roman CatholicBishop of Limerick, refuses a request to discipline two of his curates who expressed republican sympathies. He reminds General Maxwell that he had shown no mercy to those who surrendered.[2]
21 May – daylight saving time begins for the first time throughout the United Kingdom as people put their clocks forward one hour. The purpose is to reduce the number of evening hours to save fuel.
26 June – Roger Casement goes on trial at the Royal Courts of Justice on a charge of treason. He has been stripped of his knighthood.
23 July – thousands attend an open-air meeting at the Phoenix Park in Dublin to discuss the British government's Irish partition proposals. It is the first open-air meeting since martial law was proclaimed.
26 July – the date of 3 August is set as the execution date of Roger Casement.
3 August – Roger Casement is hanged at Pentonville Prison for high treason.
19 August – The Irish Times in Dublin issues a 264-page handbook detailing the events of the Easter Rising; a 2nd edition is published by the end of the year.[4]
1 October – time in Ireland: Dublin Mean Time (25 minutes behind Greenwich Mean Time) is made the same as British time from 2:00 am today under terms of the Time (Ireland) Act, 1916.
29 October – John Redmond demands the abolition of martial law, the release of suspected persons, and that Irish prisoners be treated as political prisoners.
18 November – Battle of the Somme ends after 141 days; stopped by foul weather and with thousands of Irish casualties.
21 December – in the British House of Commons, it is announced that all Irish prisoners are to be released.
25 December – the last group of Irish prisoners, 460 men from Reading Gaol, arrive in Dublin. Seán T. O'Kelly and Arthur Griffith are among those released.
7 August – there is a large audience at the Bohemian Theatre in Dublin for the first screening of the Film Company of Ireland's first film O'Neill of the Glen.
9 September – Thomas Kettle, writer, barrister, Nationalist politician and economist, killed in action (born 1880).
19 October – Alexander Young, soldier, recipient of the Victoria Cross for gallantry in 1901 at Ruiterskraal, South Africa, killed in action (born 1873).
^Burke, J. F. "First Shots Fired – Tullamore Volunteers in Prelude to Easter Rising". Irish Identity. Retrieved 25 April 2012.
^"Limerick bishop refused to bow to British military orders". Irish Identity. Retrieved 24 August 2012.
^"Parades and Marches – Chronology 2: Historical Dates and Events". Conflict Archive on the Internet (CAIN). Retrieved 28 January 2010.
^Sinn Fein Rebellion Handbook, Easter, 1916: a complete and connected narrative of the Rising, with detailed accounts of the fighting at all points in Dublin and in the country.