Skip to content
YearMaps
Industrial Era1922 CE – 1937 CEPeak: 74,990 km² (1926 CE)

Irish Free State: Map & History

The Irish Free State, also known by its Irish name Saorstát Éireann, was the Irish state established in December 1922 under the Anglo-Irish Treaty of December 1921, initially as a Dominion.

5.5
1922 CEDrag timeline:1926 CE1937 CE
1922 CE
1925 CE
1930 CE
1935 CE
1937 CE
Capital: DublinCapital at 53.35°N, 6.26°WPeak Extent: 74,990 km²Vector Attribution: Cliopatria (CC BY 4.0)Wikidata: Q31747 ↗
W

Wikipedia Encyclopedic Compendium

Historiographical synthesis & structured realm registry

Wikipedia: Irish Free State
Irish Free State historical cartography
British dominion in Europe from 1922 to 1937

The Irish Free State, also known by its Irish name Saorstát Éireann, was the Irish state established in December 1922 under the Anglo-Irish Treaty of December 1921, initially as a Dominion. The treaty ended the three-year Irish War of Independence between the forces of the Irish Republic—the Irish Republican Army (IRA)—and British Crown forces.

Capital / Seat
Dublin
Imperial Currency
The Irish Pound and the Pound Sterling were in a de facto currency union, pegged at par.
State Governance
Unitary parliamentary constitutional monarchy
Historical Religion
99.57% Christianity, 92.57% Catholicism, 7% Protestantism, 0.12% Judaism, 0.30% other religions
Peak Territory
70000
Key Dynasts / Leaders
George V, Edward VIII
Preceded By
United Kingdom of Great Britain and Ireland, Irish Republic
Succeeded By
Republic of IrelandIreland
Content & infobox metadata adapted from Wikipedia (Irish Free State)

Modern Countries Once Part of Irish Free State

At its mapped extent, Irish Free State covered territory in 1 present-day country. The period shown is when the mapped borders include that country, and the note says how much of it.

Derived by testing mapped cities against this polity's dated territorial polygons, so the list is indicative and follows the borders in the source dataset.

Irish Free State in Depth

Background

The Easter Rising of 1916 and its aftermath caused a profound shift in public opinion towards the republican cause in Ireland. In the 1918 general election, the republican Sinn Féin party won a large majority of the Irish seats in the British parliament: 73 of the 105 constituencies returned Sinn Féin members (25 uncontested). The elected Sinn Féin MPs, rather than take their seats at Westminster, set up their own assembly, known as Dáil Éireann (Assembly of Ireland). It affirmed the formation of an Irish Republic and passed a Declaration of Independence. The subsequent War of Independence, fought between the Irish Republican Army (IRA) and British security forces, continued until July 1921 when a truce came into force.

Sections adapted from Wikipedia: Irish Free State (CC BY-SA 4.0).

Irish Free State: Key Facts

Key facts about Irish Free State
CapitalDublin
Official languagesIrish, English
Form of governmentparliamentary monarchy
CurrencyIrish pound
Founded6 December 1922
Dissolved29 December 1937

Preceded by

  • Irish Republic
  • United Kingdom of Great Britain and Ireland
  • Ireland

Succeeded by

  • Ireland

Facts from Wikidata Q31747 (CC0).

Irish Free State Timeline

Key historical inflections from foundation to peak territorial expansion

1 Epochs
Territorial Apex1926 CE

Expansion to peak recorded area of 74,990 km² in 1926 CE.

Irish Free State: Frequently Asked Questions

When did Irish Free State exist?

Irish Free State is dated to 1922 CE – 1937 CE, in the Industrial era.

What was the capital of Irish Free State?

The capital of Irish Free State was Dublin.

How large was Irish Free State at its peak?

At its peak in 1926 Irish Free State covered about 74,990 km².