Irish revolutionary period
Period of Irish nationalist shift and armed conflict for independence.
The Irish revolutionary period unfolded in the 1910s and early 1920s, as popular nationalist backing moved away from the Irish Parliamentary Party, which sought Home Rule, toward the republican Sinn Féin movement. This era saw repeated waves of unrest involving Ulster loyalists, trade unionists, and republicans who favored physical force. These conflicts led to the Irish War of Independence, the island’s partition, the founding of the Irish Free State, and a subsequent civil war.
Some modern historians date the period from the introduction of the Third Home Rule Bill to the end of the Civil War (1912/1913 to 1923). Others narrow it to the Easter Rising through the War of Independence or the Civil War (1916 to 1921/1923). At least one historian has described the early Free State years, under the pro-Treaty Cumann na nGaedheal government, as a counter-revolution. Kevin O’Higgins, a Cumann na nGaedheal minister, remarked in 1923 that they were “probably the most conservative revolutionaries that ever put through a successful revolution.”
In 1910, Home Rule appeared likely, with John Redmond’s Irish Parliamentary Party holding the balance of power in the British House of Commons. The Third Home Rule Bill was introduced in 1912. Unionists quickly formed the Ulster Volunteers, prompting nationalists to create the Irish Volunteers. The Dublin lock-out that same year led to the Irish Citizen Army. In September 1914, two months after World War I began, the UK Parliament passed the Government of Ireland Act 1914, granting self-government to Ireland, but suspended it for the war’s duration. Irish nationalist leaders and the IPP backed Irish participation in the war, expecting Home Rule to follow. A minority within the Irish Volunteers opposed this; most members left to form the National Volunteers, some enlisting in Irish regiments of the new British Army—the 10th and 16th (Irish) Divisions—alongside the unionist 36th (Ulster) Division. Britain attempted to implement Home Rule twice before the war ended, in May 1916 and through the Irish Convention of 1917–1918, but nationalists and unionists could not agree on terms for Ulster’s temporary or permanent exclusion.
From 1916 to 1921, political violence and upheaval dominated, ending with partition and independence for 26 of Ireland’s 32 counties. The Easter Rising of 1916, a failed insurrection by the Irish Volunteers
- Period
- 1910s to early 1920s (sometimes defined as 1912/1913 to 1923, or 1916 to 1921/1923)
- Key Events
- Easter Rising, Irish War of Independence, Partition, Irish Civil War
- Major Figures
- John Redmond, Patrick Pearse, Arthur Griffith, Michael Collins, Kevin O'Higgins
- Outcome
- Creation of the Irish Free State and Northern Ireland
- Field
- Political and military history
Lore & Background
The revolutionary period began with the introduction of the Third Home Rule Bill in 1912, which spurred unionist resistance through the Ulster Volunteers and nationalist formation of the Irish Volunteers. The Dublin lock-out in 1913 led to the Irish Citizen Army. The Home Rule Act was passed in 1914 but suspended for World War I, during which Irish nationalist leaders supported the British war effort. The Easter Rising of 1916, though initially unpopular, shifted public opinion toward republicanism after the execution of its leaders. The 1918 Conscription Crisis further accelerated this change, and in the December 1918 election Sinn Féin won three-quarters of Irish seats. The First Dáil declared an Irish Republic in 1919, and the Irish Republican Army waged a guerrilla war from 1919 to 1921. The Government of Ireland Act 1920 partitioned the island, and the Anglo-Irish Treaty of 1921 created the Irish Free State as a dominion, with Northern Ireland opting to remain in the UK. The treaty led to the Irish Civil War (1922–1923), which ended the revolutionary period.
Reader's Guide
The Irish revolutionary period fundamentally reshaped Ireland's political landscape, ending British rule in 26 counties and establishing the Irish Free State, while Northern Ireland remained part of the UK. The period saw a shift from constitutional Home Rule to militant republicanism, with the Easter Rising and subsequent guerrilla war achieving partial independence. The Civil War that followed the treaty divided nationalists, with the pro-treaty side, led by Cumann na nGaedheal, described by historian as a counter-revolution. The period's legacy includes separate unionist and nationalist historical narratives, further complicated by the Civil War. Modern commemorations, such as the Decade of Centenaries, aim to promote mutual respect and historical accuracy. The Bureau of Military History collected oral accounts from veterans, sealed until 2003 and published online in 2012. The period's events—including the Ulster Covenant, Battle of the Somme, Easter Rising, and the Treaty—continue to be re-examined in the context of the Northern Ireland peace process.
Did You Know?
- Some modern historians define the revolutionary period as from the introduction of the Third Home Rule Bill to the end of the Civil War (1912/1913 to 1923).
- The Dublin lock-out in 1913 led to the creation of the Irish Citizen Army.
- The Bureau of Military History, established in 1947, collected oral history accounts from republican veterans of 1913 to 1921, sealed until 2003.
- Cumann na nGaedheal minister Kevin O'Higgins said in 1923, 'we were probably the most conservative revolutionaries that ever put through a successful revolution'.
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