Events from the year 1916 in Ireland. Events 14 February – John Redmond is re-elected Chairman of the Irish Parliamentary Party in Dublin. 29 February – the week-long Derry Feis opens in the city. 21 March – a crowd attacks Sinn Féin's Tullamore headquarters; three police are injured. 20–21 April – the German-controlled cargo steamer , masquerading as , is intercepted by the Royal Navy and scuttled following an unsuccessful attempt to land arms for the Irish Volunteers in Tralee Bay. 21 April – Roger Casement and two others are arrested at Banna Strand, County Kerry, for attempting to land arms and ammunition. 22 April – Eoin MacNeill, Chief of Staff of the Irish Volunteers cancels all manoeuvres of Volunteers planned for the following day. 23 April – Easter Sunday: the military council of the Irish Republican Brotherhood meets at Liberty Hall and decides to begin the planned insurrection at noon the next day. The Proclamation of the Republic is signed by the seven leaders in the name of the Provisional Government of the Irish Republic. Volunteers from Belfast and County Cork begin manoeuvres but return home. 24 April – the Easter Rising begins in Dublin. The Irish Volunteers and the Irish Citizen Army occupy the General Post Office, City Hall, the College of Surgeons, the Four Courts, Jacob's Factory, Boland's Mills, the South Dublin Union, and the Mendicity Institution. At noon Patrick Pearse reads the proclamation outside the General Post Office, Dublin. Liam Mellows leads a rising of Volunteers in County Galway. 25 April – martial law is declared in Dublin by the British authorities for a period of one month. 26 April Francis Sheehy-Skeffington, Thomas Dickson and Patrick McIntyre are summarily executed at Portobello Barracks. Dublin-built HMS Helga shells Liberty Hall from the Liffey. Battle of Mount Street Bridge 27 April Major-General Sir John Maxwell arrives in Dublin to take command of the British Army, 12,000 of whose troops are now in the city; the centre is cordoned off. Gas attack at Hulluch in France: The 47th Brigade, 16th (Irish) Division is decimated in one of the most heavily concentrated German gas attacks of World War I. Newspaper strike in Dublin – until 5 May. 28 April – Battle of Ashbourne: A group of Volunteers at Ashbourne, County Meath, force the Royal Irish Constabulary to surrender with the loss of 8 police to 2 Volunteers. 29 April –