Troops are deployed on the streets of Northern Ireland, marking the start of the Troubles.
January 1 - The People's Democracy civil rights march leaves Belfast for Derry.
January 4 - Militant loyalists, including off-duty B-Specials, attack the civil rights marchers in County Londonderry.
January 10 - Protestors in Northern Ireland defy police orders to abandon a planned march.
January 27 - Ian Paisley is jailed for three months for illegal assembly in Northern Ireland.
March 4 - The Lichfield Report is issued. It proposes the creation of a "University of Limerick" which will be "orientated towards technological subjects".
March 19 - The Republic of Ireland receives its first loan from the World Bank.
March 22 - Civil rights demonstrations take place all over Northern Ireland.
April 17 - Bernadette Devlin, the 21-year-old student and civil rights campaigner, wins the Mid-Ulster by-election. She is the youngest female MP ever.
April 20 - Troops arrive in Northern Ireland as a back-up to the Royal Ulster Constabulary.
April 28 - The Prime Minister of Northern Ireland, Terence O'Neill, resigns.
May 1 - Major James Chichester-Clark succeeds Terence O'Neill as the Northern Irish Prime Minister.
May 7 - The Republic's Minister for Finance Charles Haughey announces tax exemptions for painters, sculptors, writers and composers on earnings gained from works of cultural merit.
June 18 - Former French President General Charles de Gaulle and his wife are greeted by President de Valera at Ãras an UachtarÃ¡in.
July 21 - Neil Armstrong becomes the first person to set foot on the moon. President de Valera sends President Nixon a telegram of congratulations and admiration.
July 31 - The halfpenny is withdrawn from circulation as Northern Ireland moves towards decimalisation.
August 1 - A huge protest rally over events in Northern Ireland is held outside the GPO. The crowd demands that the Irish Army cross the border.
August 3 - Taoiseach Jack Lynch makes a state visit to the Lebanon.
August 5 - Belfast experiences the worst sectarian rioting since 1935.
August 12 - Rioting breaks out in Derry in the Battle of the Bogside, the first major confrontation of The Troubles.
August 13â€“17 - Sectarian rioting in Northern Ireland.
August 13 - As the Battle of the Bogside continues, Taoiseach Jack Lynch makes a speech on Southern television. He says that the Republic's government "can no longer stand by" and demands a United Nations peace-keeping force for Northern Ireland.
August 14 - British troops are deployed for the first time in Northern Ireland to restore law and order. Their presence is at first welcomed by many in the Catholic population of Derry.
August 15 - A night of shooting and burning takes place in Belfast. In Dublin a Sinn FÃ©in protest meeting calls for the boycott of British goods, Irish government protection of the people of Northern Ireland and United Nations intervention.
August 16 - Soldiers are deployed into particularly violent areas of Belfast.
August 17 - Members of an Garda SÃochÃ¡na clash with protesters on O'Connell Street, Dublin, as a march against the Northern Ireland situation heads for the British embassy.
August 27 - The B-Specials begin to hand in their guns following a call by Lieutenant-General Ian Freeland to disband them. British Home Secretary, James Callaghan, visits Belfast.
August 30 - Jack Lynch orders the Irish Army Chief of Staff, General SeÃ¡n Mac Eoin, to prepare a plan for possible incursions into Northern Ireland in defence of Catholic communities there, Exercise Armageddon.
October 10 - The Hunt Committee Report recommends an unarmed civil police force in Northern Ireland and abolition of the Ulster Special Constabulary.
December 1 - Fianna FÃ¡il pays tribute to SeÃ¡n Lemass as his forty-five years of public life come to an end.
December - The Irish Republican Army splits into Official and Provisional wings.