8 January – the Council of State meets for the first time when PresidentSean T. O'Kelly tests the constitutionality of the Offences Against the State Bill.
15 January – gas rationing ends in Dublin for the first time since 1942.
18 February – members of the 13th Dáil assemble. De Valera is voted out of office as Taoiseach after 16 years and John A. Costello is elected to succeed him as the country's second prime minister and an inter-party government of the 13th Dáil is formed, the first change of government since 1932.
4 April – Captain E. G. Hitzen hands over a flag surrendered during the 1916 Easter Rising. He also discusses his capture of Éamon de Valera.
18 June – a 36-foot shark is spotted off the coast of County Donegal.
22 August – the Dwyer McAllister Cottage at Dernamuck in the Glen of Imaal, Co. Wicklow (scene of rebel leader Michael Dwyer's escape from British troops in 1799), is handed over to the Irish State by the Hoxey family, with President Seán T. O'Kelly, Éamon de Valera and other dignitaries being present at the ceremonial handover.[1]
26 October – final ruling in the Sinn Féin Funds case decides that the Sinn Féin party as reconstituted in 1923 is "not in any legal sense a continuation" of the party that had "melted away" in 1922 and is thus unable to claim funds deposited in its name in the High Court.
^Collins, Peter, Who Fears to Speak of '98'?: Commemoration and the Continuing Impact of the United Irishmen (Ulster Historical Foundation, 2004), p. 61