18 April - 1,000 delegates from all over Ireland attend the Sinn Féin Ard-Fheis in Dublin. Éamon de Valera is elected President of the organisation.
19 April - Sinn Féin proposes an Executive Council of the Irish National Alliance to challenge the right of any foreign parliament to make laws for Ireland.
9 November - Labour leader James Larkin is arrested in New York. He is charged with circulating a publication advocating the forcible overthrow of the government.
Arts and literature
5 May Seamus Ennis born. Irish player of uilleann pipes, singer, and folk-song collector.