In a number of areas, the island operates officially as a single entity, for example, in sport. The major religions, the Roman Catholic Church, the Church of Ireland and the Presbyterian Church of Ireland, are organised on an all-island basis. 92% of the population of the Republic of Ireland are Roman Catholic, and 40% in Northern Ireland. Some trades unions are also organised on an all-Irish basis and associated with the Irish Congress of Trades Unions (ICTU) in Dublin, while others in Northern Ireland are affiliated with the Trades Union Congress (TUC) in the United Kingdom. The island also has a shared culture across the divide in many other ways. Traditional Irish music, for example, though showing some variance in all geographical areas, is broadly speaking the same on both sides of the border. Irish and Scottish traditional music are similar.
The area now known as Northern Ireland has had a diverse history. From serving as the bedrock of Irish resistance in the era of the plantations of Queen Elizabeth and James I in other parts of Ireland, it became itself the subject of major planting of Scottish and English settlers after the Flight of the Earls in 1607 (when the native aristocracy left en masse).
The vast majority of the population of Northern Ireland identifies with one of two different groups, unionists and nationalists. Both sides of the community are often described by their predominant religious attachments. Unionists are predominantly Protestant (the major Protestant faith is Presbyterianism, the second in terms of size is the Church of Ireland), while nationalists are predominantly Catholic. However, contrary to widespread belief, not all Catholics necessarily support nationalism, and not all Protestants necessarily support unionism. It is also important to note that, in parallel with other parts of Europe, the proportion of the population practising their religious beliefs has fallen dramatically in recent decades, particularly among Catholics and adherents of mainstream Protestant denominations. This has not necessarily resulted in a weakening of communal feeling.
In 1998, following a Provisional IRA cease-fire, the Good Friday Agreement was concluded and attempts began to be made to restore self-government to Northern Ireland on the basis of power sharing between the two communities. Violence has greatly decreased since the signing of the accord.
Prior to the Government of Ireland Act 1920 the island had existed for centuries as one unified political entity, either on its own (as the Lordship of Ireland, the Kingdom of Ireland) or as part of the United Kingdom of Great Britain and Ireland. Prior to English rule in medićval times the island was made up of a patchwork of small kingdoms that were people and clan rather than territory-based. At the top of this system was the Ard Ri or High King of Ireland. See Irish States (1171-present).
Ireland is divided into four provinces: Connacht (or Connaught), Leinster, Munster and Ulster. These were further divided into 32 counties for administrative purposes. Six counties remain in the United Kingdom as Northern Ireland following Ireland's partition in 1922 (the remaining 26 forming present-day Republic of Ireland); these county boundaries no longer exist in Northern Ireland for administrative purposes, apart from Fermanagh. In the Republic, the county boundaries are still adhered to for local government, albeit with Tipperary and Dublin subdivided (some cities also have their own administrative regions). For election constituencies, some counties are merged or divided, but constitutionally the boundaries have to be observed. Across Ireland, the 32 counties are still used in sports and in some other cultural areas and retain a strong sense of local identity.
The state was neutral during World War II but offered some assistance to the Allies. In 1949 the state was declared to be a republic; since that time it has been commonly referred to as the "Republic of Ireland". The state was plagued by poverty and emigration until the 1990s. That decade saw the beginning of unprecedented economic success, in a phenomenon known as the "Celtic Tiger". By the early 2000s, it had become one of the richest countries (in terms of GDP per capita) in the European Union, moving from being a net recipient to a net contributor and from a population with net emigration to one with net immigration.
With its improved international reputation, Northern Ireland has recently witnessed rising numbers of tourists who come to appreciate the area's unique heritage. Attractions include cultural festivals, musical and artistic traditions, countryside and geographical sites of interest, pubs, welcoming hospitality and sports (especially golf and fishing).
The state operates under the Constitution of Ireland, also known as Bunreacht na hÉireann, adopted in 1937. The constitution falls broadly within the liberal democratic tradition. It defines the organs of government and guarantees certain fundamental rights. The constitution may only be amended by referendum. Important constitutional referenda have concerned issues such as abortion, the status of the Catholic Church, divorce and the European Union.
The three most important international airports in the Republic are Dublin Airport, Cork Airport and Shannon Airport. All provide extensive services to the UK, Europe and North America. The Irish national airline Aer Lingus and low-cost operator Ryanair are based at Dublin. Shannon is an important stopover on trans-Atlantic route for refuelling operations. There are several smaller regional airports in the Republic (Galway Airport, Kerry Airport, Knock Airport, Sligo Airport, Waterford Airport) that mostly limit their services to Ireland and the United Kingdom.
The Republic of Ireland is a common law jurisdiction. The judiciary consists of the Supreme Court, the High Court and many lower courts established by law. Judges are appointed by the President after being nominated by the Government and can be removed from office only for misbehaviour or incapacity, and then only by resolution of both houses of the Oireachtas. The final court of appeal is the Supreme Court, which consists of the Chief Justice and seven other justices. The Supreme Court has the power of judicial review and may declare to be invalid both laws and acts of the state which are repugnant to the constitution.
Today, Northern Ireland comprises a diverse patchwork of community rivalries, represented in some areas by whole communities where lamp posts and some homes fly the Irish national flag, the tricolour, or the Union Flag, the symbol of British identity, while even the kerbstones in less affluent areas get painted green-white-orange or red-white-blue, depending on whether a local community expresses nationalist/republican or unionist/loyalist sympathies.
The culture of the people living on the island of Ireland is far from monolithic. Many notable cultural divides exist between the rural people and city dwellers, between the Catholic and Protestant people of Northern Ireland, between the Irish-speaking people within and without the Gaeltacht regions and the English-speaking majority population, between the settled people and the Travellers, and, increasingly, between new immigrants and the native population.
Prior to 1801 Ireland enjoyed a self-governing status under the Parliament of Ireland, but was ruled by its Anglo-Irish, Protestant minority. In 1801 this parliament was abolished and Ireland became an integral part of a new United Kingdom of Great Britain and Ireland under the Act of Union. In 1922, after the War of Independence, the southern twenty-six counties of Ireland seceded from the United Kingdom (UK) and became the independent state known today as the 'Republic of Ireland'. The remainder of the island, known as 'Northern Ireland', remained part of the UK.
The all-island Kingdom of Ireland (1541-1801) was incorporated into the United Kingdom in 1801 under the terms of the Act of Union, under which the kingdoms of Ireland and Great Britain merged under a central parliament, government and monarchy based in London. In the early 20th century Unionists, led by Sir Edward Carson, opposed the introduction of Home Rule in Ireland. Unionists were in a minority on the island of Ireland as a whole, but formed a majority in the northern province of Ulster. Therefore, after the First World War, Ireland was partitioned in 1921 under the terms of the Government of Ireland Act 1920 between six of the nine Ulster counties in the northeast (forming Northern Ieland) and the remaining twenty-six counties of the south and west (forming Southern Ireland and became the Irish Free State in 1922). When the latter achieved dominion status, the six Northern Ireland counties — under the procedures laid out in the Anglo-Irish Treaty, 1921 — opted out, and so remain as part of the United Kingdom.
