5 February – SS Tuscania (1914) was torpedoed off the Irish coast; it was the first ship carrying United States troops to Europe to be torpedoed and sunk.
18 April – The Military Service Bill, which included conscription in Ireland, became law. A conference of nationalist parties, Sinn Féin, and labour movements met in Dublin to organise an all-Ireland opposition to conscription.
5 May – 15,000 people attend an anti-conscription meeting in County Roscommon. John Dillon, leader of the Irish Parliamentary Party and Éamon de Valera of Sinn Féin share the platform in a united cause.[1]
20 May – A special anti-conscription convention was held in Dublin. It condemned the arrest and deportation of Sinn Féin members consequent to the "German Plot".
20 June – Arthur Griffith of Sinn Féin won a by-election in East Cavan. It was Sinn Féin's first victory of the year after three successive by-election defeats.
17 July – RMS Carpathia was torpedoed and sunk off the east coast of Ireland by Imperial German Navy U-boat SM U-55; 218 of the 223 people on board were rescued.[3]
11 November – At 5am, an armistice dictated by the Allies was signed by the Germans. Six hours later World War I officially ended. Well over 206,000 Irishmen had served and over 35,000 were killed during the war;[4] there was no Irish parish without a loss.
22 December – Ireland voiced a united invitation to President Woodrow Wilson of the United States to visit.
August – Anglo-Welsh composer Philip Heseltine concluded a year's stay in Ireland with the writing of a number of songs which would be published under the pseudonym Peter Warlock.
^"The mystery of the Sinn Féin film". Drogheda Independent. Independent News & Media. 15 October 2004. [..] scenes included the Anti-Conscription meeting at Ballaghadereen, Co Roscommon with John Dillon and de Valera sharing the same platform;