Celtic tribes arrived on the island between 600 and 150 B.C. Invasions by Norsemen that began in the late 8th century were finally ended when King Brian BORU defeated the Danes in 1014. Norman invasions began in the 12th century and set off more than seven centuries of Anglo-Irish struggle marked by fierce rebellions and harsh repressions. The Irish famine of the mid-19th century was responsible for a drop in the island's population by more than one quarter through starvation, disease, and emigration. For more than a century afterward, the population of the island continued to fall, only to begin growing again in the 1960s. Over the last 50 years, Ireland's high birthrate has made it demographically one of the youngest populations in the EU.
The modern Irish state traces its origins to the failed 1916 Easter Monday Uprising that galvanized nationalist sentiment and fostered a guerrilla war resulting in independence from the UK in 1921 with the signing of the Anglo-Irish Treaty and the creation of the Irish Free State. The treaty was deeply controversial in Ireland, in part because it helped solidify the partition of Ireland, with six of the island's 32 counties remaining in the UK as Northern Ireland. The split between pro-Treaty and anti-Treaty partisans led to the Irish Civil War (1922-23). The traditionally dominant political parties in Ireland, Fine Gael and Fianna Fail, are de facto descendants of the opposing sides of the treaty debate. Ireland formally left the British Dominion in 1949 when Ireland declared itself a republic.
Deep sectarian divides between the Catholic and Protestant populations and systemic discrimination in Northern Ireland erupted into years of violence known as the "Troubles" that began in the 1960s. In 1998, the governments of Ireland and the UK, along with most political parties in Northern Ireland, reached the Belfast/Good Friday Agreement with the support of the US. This agreement helped end the Troubles and initiated a new phase of cooperation between the Irish and British Governments.
Ireland was neutral in World War II and continues its policy of military neutrality. Ireland joined the European Community in 1973 and the euro-zone currency union in 1999. The economic boom years of the Celtic Tiger (1995-2007) saw rapid economic growth, which came to an abrupt end in 2008 with the meltdown of the Irish banking system. As a small, open economy, Ireland has excelled at courting foreign direct investment, especially from US multi-nationals, which helped the economy recover from the financial crisis and insulated it somewhat from the economic shocks of the COVID-19 pandemic.
NOTE: The information regarding Ireland on this page is re-published from the 2024 World Fact Book of the United States Central Intelligence Agency and other sources. No claims are made regarding the accuracy of Ireland 2024 information contained here. All suggestions for corrections of any errors about Ireland 2024 should be addressed to the CIA or the source cited on each page.
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