January 10 â€“ Huge anti-apartheid demonstrations take place as Ireland play South Africa in rugby union.
January 10 â€“ Ã‰amon and SinÃ©ad de Valera celebrate their 60th wedding anniversary.
January 11 â€“ Sinn FÃ©in splits into Provisional and Official wings over a disagreement on abstentionism.
April 3 â€“ Garda Richard Fallon (Republic of Ireland policeman) murdered on duty in Dublin. First policeman killed in the South during the troubles.
April 16 â€“ Rev. Ian Paisley wins a by-election to the House of Commons of Northern Ireland.
April 21 â€“ The Alliance Party is founded in Northern Ireland.
April 22 â€“ Taoiseach Jack Lynch presents the budget in the absence of the Minister for Finance, Charles Haughey, who was injured, supposedly in a riding accident.
May 4 â€“ The Minister for Justice, MicheÃ¡l Ã“ MÃ³rÃ¡in, resigns from the government citing ill-health.The Taoiseach states in the DÃ¡il on May 7, "I wish to state that Deputy Ã“ MorÃ¡in's condition is not unassociated with the shock he suffered as a result of the killing of Garda Fallon".
May 6 â€“ Arms Crisis: The Minister for Finance, Charles Haughey, and the Minister for Agriculture, Neil Blaney, are asked to resign by Taoiseach Jack Lynch. He accuses them of the attempted illegal importation of arms for use by the Provisional IRA. Kevin Boland, the Minister for Local Government, resigns in sympathy with them.
May 27 â€“ Captain James Kelly, Albert Luykx and John Kelly are arrested. They are charged with conspiracy to import arms.
May 28 â€“ Charles Haughey and Neil Blaney appear in Dublin's Bridewell Court charged, along with Albert Luykx and Capt. Kelly, with conspiracy to import arms.
May 31 â€“ Arkle is put down at the home of his owner, Anne, Duchess of Westminster.
June 4 â€“ Kevin Boland is expelled from the Fianna FÃ¡il parliamentary party.
June 25 â€“ Bishops meeting at Maynooth lift the ban on Catholic attendance at Trinity College Dublin.
July 2 â€“ Neil Blaney is cleared of arms conspiracy charges.
July 5 â€“ After a special cabinet meeting the government demands a ban on all parades in Northern Ireland and the disarmament of civilians.
August 2 â€“ The British Army first fires rubber bullets in Belfast.
August 9 â€“ The Galway-Aran Islands air service is launched. A return air-fare costs Â£5.
August 21 â€“ A new political party, the Social Democratic and Labour Party, is founded in Northern Ireland under the leadership of Gerry Fitt.
September 1 â€“ The New University of Ulster is presented with a Royal Charter by Elizabeth II.
October 3 â€“ United States President Richard Nixon arrives in Ireland. He is greeted by Taoiseach Jack Lynch. In Dublin an anti-Vietnam War protest takes place.
October 4 â€“ Mrs Nixon visits relatives and her ancestral home in County Mayo. Another protest takes place outside the U.S. Embassy in Dublin.
October 23 â€“ Charles Haughey, James Kelly, Albert Luykx and John Kelly are acquitted in the Arms Conspiracy Trial.
October 26 â€“ Taoiseach Jack Lynch, questioned on his return from the United States, says that there will be no change in fundamental Fianna FÃ¡il policy regarding Northern Ireland.
December 15 â€“ Aer Lingus takes delivery of its first Boeing 747 Jumbo Jet, the largest aircraft it will ever operate.