Kingsmill massacre: Ten Protestant workmen were killed in County Armagh, Northern Ireland, by members of the South Armagh Republican Action Force, after loyalists shot dead six Catholic civilians in South Armagh the previous day.
3 April – The last passenger train ran on the Limerick–Claremorris line ending an 80-year north–south link along the western seaboard.
17 May – Tim Severin in the boat Brendan set off from Dingle to America, tracing the route of the legendary 6th-century Irish monk, Brendan the Navigator.
29 June – The highest temperature record in Ireland this century, 32.5 °C (90.5 °F) at Boora, County Offaly. The highest on record was in 1887.[1]
July – The rock band Horslips gave a rooftop performance from Bank of Ireland headquarters on Baggot Street in Dublin.[2][3]
15 July – Four prisoners escaped when bombs exploded in the Special Criminal Court in Dublin.
21 July – Christopher Ewart-Biggs, UK ambassador, and a civil servant, Judith Cooke, were killed by a landmine at Sandyford, County Dublin.
1 September – The state of emergency in the Republic, which was legally in force since 1939, was lifted.[4]
23 September – The President, Cearbhall Ó Dálaigh, consulted with the Council of State for four hours on whether to refer the Emergency Powers legislation to the Supreme Court.
22 October – President Cearbhall Ó Dálaigh resigned following the 'thundering disgrace' remark from the Minister for Defence, Paddy Donegan.
27 October – A new £5 note was introduced bearing an image of the 9th-century philosopher, Johannes Scotus Eriugena.
20 November – National Peace Day was marked with marches, church services, and bell ringing.
^Horslips - King of the Faries (Performance video). YouTube.com. Retrieved: 2023-02-02.
^Greene, Alan (2018). Permanent States of Emergency and the Rule of Law: Constitutions in an Age of Crisis. Bloomsbury Publishing. p. 96. ISBN 978-1-5099-0617-8. Retrieved 22 February 2020.; "National Emergency: Motion (Resumed)". Dáil debates. 292. Oireachtas: cc119–256. 1 September 1976. Retrieved 22 February 2020.; "National Emergency: Motion (Resumed)". Seanad Debates. 85. Oireachtas: cc105–212. 1 September 1976. Retrieved 22 February 2020.
^"The Nobel Peace Prize 1976". Retrieved 5 February 2008.
^"End of Term". PlayographyIreland. Dublin: Irish Theatre Institute. Retrieved 14 July 2016.