8 February – The First Lord of the Admiralty Winston Churchill addressed a pro-Home Rule meeting in Belfast despite Ulster Unionist attempts to prevent him speaking. He shared the platform with John Redmond, the leader of the Irish Parliamentary Party.
12 April – A convention of Sinn Féin delegates led by Arthur Griffith opposed the Home Rule Bill.
14 April – The RMS Titanic, the largest vessel in the world, built in Belfast and making her last call at Queenstown, collided with an iceberg and sank.
17 July - "A hatchet (around which a text reading 'This symbol of the extinction of the Liberal Party for evermore' was wrapped) was thrown [by a Suffragette] at [ Aquith's] moving carriage as it passed over O’Connell Bridge", striking John Redmond on the arm.[2]
27 July – Bonar Law, leader of the British Conservative Party in opposition, made a defiant speech at a massive Unionist rally at Blenheim Palace against Home Rule, implying support for armed resistance to it in Ulster.
28 September – 'Ulster Day' – the Ulster Covenant to resist Home Rule was signed by almost 250,000 men throughout Ulster; 229,000 women signed a parallel declaration.
23 October – Large numbers of cattle were slaughtered in Mullingar due to the outbreak of foot and mouth disease in the area.
The golden eagle became extinct in Ireland (prior to reintroduction).