Ireland - Irish Eireârˈə [to it are related the poetic Erin and perhaps the Latin Hibernia], island, 32,598 sq mi (84,429 sq km), second largest of the British Isles. The island is divided into two major political units—Northern Ireland (see
Ireland, Northern), which is joined with Great Britain in the United Kingdom, and the Republic of Ireland (see
Ireland, Republic of). Of the 32 counties of Ireland, 26 lie in the Republic, and of the four historic provinces, three and part of the fourth are in the Republic.
Geology and Geography Ireland lies west of the island of Great Britain, from which it is separated by the narrow North Channel, the Irish Sea (which attains a width of 130 mi/209 km), and St. George's Channel. More than a third the size of Britain, the island averages 140 mi (225 km) in width and 225 mi (362 km) in length. A large central plain extending to the Irish Sea between the Mourne Mts. in the north and the mountains of Wicklow in the south is roughly enclosed by a highland rim. The highlands of the north, west, and south, which rise to more than 3,000 ft (914 m), are generally barren, but the central plain is extremely fertile and the climate is temperate and moist, warmed by southwesterly winds. The rains, which are heaviest in the west (some areas have more than 80 in./203 cm annually), are responsible for the brilliant green grass of the "emerald isle," and for the large stretches of peat bog, a source of valuable fuel. The coastline is irregular, affording many natural harbors. Off the west coast are numerous small islands, including the
Aran Islands, the
Blasket Islands,
Achill, and
Clare Island. The interior is dotted with lakes (the most celebrated are the Lakes of
Killarney) and wide stretches of river called loughs. The
Shannon, the longest of Irish rivers, drains the western plain and widens into the beautiful loughs Allen, Ree, and Derg. The River Liffey empties into Dublin Bay, the Lee into Cork Harbour at Cobh, the Foyle into Lough Royle near Derry, and the Lagan into Belfast Lough. History Ireland to the English Conquest The earliest known people in Ireland belonged to the groups that inhabited all of the British Isles in prehistoric times. In the several centuries preceding the birth of Jesus a number of Celtic tribes invaded and conquered Ireland and established their distinctive culture (see
Celt), although they do not seem to have come in great numbers. Ancient Irish legend tells of four successive peoples who invaded the country—the Firbolgs, the Fomors, the
Tuatha De Danann, and the
Milesians. Oddly enough, the Romans, who occupied Britain for 400 years, never came to Ireland, and the Anglo-Saxon invaders of Britain, who largely replaced the Celtic population there, did not greatly affect Ireland. Until the raids of the Norse in the late 8th cent., Ireland remained relatively untouched by foreign incursions and enjoyed the golden age of its culture. The people, Celtic and non-Celtic alike, were organized into clans, or tribes, which in the early period owed allegiance to one of five provincial kings—of
Ulster,
Munster,
Connacht,
Leinster, and
Meath (now the northern part of Leinster). These kings nominally served the high king of all Ireland at Tara (in Meath). The clans fought constantly among themselves, but despite civil strife, literature and art were held in high respect. Each chief or king kept an official poet (Druid) who preserved the oral traditions of the people. The Gaelic language and culture were extended into Scotland by Irish emigrants in the 5th and 6th cent. Parts of Ireland had already been Christianized before the arrival of St.
Patrick in the 5th cent., but pagan tradition continued to appeal to the imagination of Irish poets even after the complete conversion of the country. The Celtic Christianity of Ireland produced many scholars and missionaries who traveled to England and the Continent, and it attracted students to Irish monasteries, until the 8th cent. perhaps the most brilliant of Europe. St.
Columba and St.
Columban were among the most famous of Ireland's missionaries. All the arts flourished; Irish illuminated manuscripts were particularly noteworthy. The Book of Kells (see
Ceanannus Mór) is especially famous. The country did not develop a strong central government, however, and it was not united to meet the invasions of the Norse, who settled on the shores of the island late in the 8th cent., establishing trading towns (including Dublin, Waterford, and Limerick) and creating new petty kingdoms. In 1014, at Clontarf,
Brian Boru, who had become high king by conquest in 1002, broke the strength of the Norse invaders. There followed a period of 150 years during which Ireland was free from foreign interference but was torn by clan warfare. Ireland and the English In the 12th cent., Pope Adrian IV granted overlordship of Ireland to Henry II of England. The English conquest of Ireland was begun by Richard de Clare, 2d earl of
Pembroke, known as Strongbow, who intervened in behalf of a claimant to the throne of Leinster; in 1171, Henry himself went to Ireland, temporarily establishing his overlordship there. With this invasion commenced an Anglo-Irish struggle that continued for nearly 800 years. The English established themselves in Dublin. Roughly a century of warfare ensued as Ireland was divided into English shires ruled from Dublin, the domains of feudal magnates who acknowledged English sovereignty, and the independent Irish kingdoms. Many English intermarried with the Irish and were assimilated into Irish society. In the late 13th cent. the English introduced a parliament in Ireland. In 1315, Edward
Bruce of Scotland invaded Ireland and was joined by many Irish kings. Although Bruce was killed in 1318, the English authority in Ireland was weakening, becoming limited to a small district around Dublin known as the
Pale; the rest of the country fell into a struggle for power among the ruling Anglo-Irish families and Irish chieftains. English attention was diverted by the
Hundred Years War with France (1337–1453) and the Wars of the
Roses (1455–85). However, under Henry VII new interest in the island was aroused by Irish support for Lambert Simnel, a Yorkist pretender to the English throne. To crush this support, Henry sent to Ireland Sir Edward
Poynings, who summoned an Irish Parliament at Drogheda and forced it to pass the legislation known as Poynings' Law (1495). These acts provided that future Irish Parliaments and legislation receive prior approval from the English Privy Council. A free Irish Parliament was thus rendered impossible. The English Reformation under Henry VIII gave rise in England to increased fears of foreign, Catholic invasion; control of Ireland thus became even more imperative. Henry VIII put down a rebellion (1534–37), abolished the monasteries, confiscated lands, and established a Protestant "Church of Ireland" (1537). But since the vast majority of Irish remained Roman Catholic, the seeds of bitter religious contention were added to the already rancorous Anglo-Irish relations. The Irish rebelled three times during the reign of Elizabeth I and were brutally suppressed. Under James I, Ulster was settled by Scottish and English Protestants, and many of the Catholic inhabitants were driven off their lands; thus two sharply antagonistic communities were established. Another Irish rebellion, begun in 1641 in reaction to the hated rule of Charles I's deputy, Thomas Wentworth, earl of
Strafford, was crushed (1649–50) by Oliver Cromwell with the loss of hundreds of thousands of lives. More land was confiscated (and often given to absentee landlords), and more Protestants settled in Ireland. The intractable landlord-tenant problem that plagued Ireland in later centuries can be traced to the English confiscations of the 16th and 17th cent. Irish Catholics rallied to the cause of James II after his overthrow (1688) in England (see the
Glorious Revolution), while the Protestants in Ulster enthusiastically supported William III. At the battle of the
Boyne (1690) near Dublin, James and his French allies were defeated by William. The English-controlled Irish Parliament passed harsh
Penal Laws designed to keep the Catholic Irish powerless; political equality was also denied to Presbyterians. At the same time English trade policy depressed the economy of Protestant Ireland, causing many so-called Scotch-Irish to emigrate to America. A newly flourishing woolen industry was destroyed when export from Ireland was forbidden. During the American Revolution, fear of a French invasion of Ireland led Irish Protestants to form (1778–82) the Protestant Volunteer Army. The Protestants, led by Henry
Grattan, and even supported by some Catholics, used their military strength to extract concessions for Ireland from Britain. Trade concessions were granted in 1779, and, with the repeal of Poynings' Law (1782), the Irish Parliament had its independence restored. But the Parliament was still chosen undemocratically, and Catholics continued to be denied the right to hold political office. Another unsuccessful rebellion was staged in 1798 by Wolfe Tone, a Protestant who had formed the Society of
United Irishmen and who accepted French aid in the uprising. The reliance on French assistance revived anti-Catholic feeling among the Irish Protestants, who remembered French support of the Jacobite restoration. The rebellion convinced the British prime minister, William
Pitt, that the Irish problem could be solved by the adoption of three policies: abolition of the Irish Parliament, legislative union with Britain in a United Kingdom of Great Britain and Ireland, and
Catholic Emancipation. The first two goals were achieved in 1800, but the opposition of George III and British Protestants prevented the enactment of the | 
