November 21, 1920

Bloody Sunday occurred in Dublin during the Irish War of Independence, with 31 people killed in a day of violence.


Dublin, Ireland | Irish Republican Army

Watercolor painting based depiction of Bloody Sunday occurred in Dublin during the Irish War of Independence, with 31 people killed in a day of violence. (1920)

Bloody Sunday: November 21, 1920

Bloody Sunday, which took place on November 21, 1920, in Dublin, was a pivotal and violent day during the Irish War of Independence. This conflict was a guerrilla war between the Irish Republican Army (IRA) and British forces, aimed at ending British rule in Ireland and establishing an independent Irish Republic.

Context Leading Up to the Event

The Irish War of Independence began in January 1919, following the 1918 general election in which Sinn Féin, the political party advocating for Irish independence, won a significant majority of Irish seats. The party’s elected members refused to take their seats in the British Parliament and instead formed the Dáil Éireann, an Irish parliament. The IRA, acting as the military arm of the Dáil, engaged in a campaign of guerrilla warfare against British forces.

Key Events of Bloody Sunday

Bloody Sunday unfolded in three distinct phases:

Morning: IRA Assassinations

  • Objective: The IRA, under the leadership of Michael Collins, targeted the “Cairo Gang,” a group of British intelligence agents operating in Dublin.
  • Action: Early in the morning, IRA operatives carried out coordinated attacks on multiple locations across Dublin, assassinating 14 British intelligence officers and informants. This operation severely disrupted British intelligence operations in Ireland.

Afternoon: Croke Park Massacre

  • Event: In retaliation for the morning’s assassinations, British forces, including the Royal Irish Constabulary (RIC) and the Auxiliary Division, raided a Gaelic football match at Croke Park.
  • Outcome: The forces opened fire on the crowd, resulting in the deaths of 14 civilians and injuring dozens more. This act of violence against civilians further inflamed public opinion against British rule.

Evening: Killings at Dublin Castle

  • Incident: Later that evening, two IRA prisoners, Dick McKee and Peadar Clancy, along with a civilian, Conor Clune, were killed while in custody at Dublin Castle. The official explanation was that they were shot while attempting to escape, but this account was widely disputed.

Aftermath and Historical Significance

Bloody Sunday marked a significant escalation in the Irish War of Independence. The day’s events highlighted the brutality of the conflict and the lengths to which both sides would go to achieve their aims. The violence further galvanized Irish public opinion against British rule and increased support for the IRA.

The events of Bloody Sunday also drew international attention to the Irish struggle for independence, contributing to mounting pressure on the British government to seek a political solution. This pressure eventually led to the negotiation of the Anglo-Irish Treaty in December 1921, which resulted in the establishment of the Irish Free State.

Bloody Sunday remains a poignant and somber chapter in Irish history, symbolizing both the struggle for independence and the tragic cost of conflict.