A modern Celtic identity emerged in Western Europe following the identification of the native peoples of the Atlantic fringe as Celts by Edward Lhuyd in the 18th century. Lhuyd and others equated the Celts described by Greco-Roman writers with the ancestors of the pre-Roman peoples of France, Britain and Ireland. The Irish and ancient British languages were thus Celtic languages. The descendents of these languages were the Welsh, Gaelic (Irish, Manx and Scottish variants), Cornish and Breton languages. These peoples were therefore modern Celts. Attempts were made to link their distinctive cultures to those of the ancient Celtic peoples.
The concept of modern Celtic identity evolved during the course of the 19th-century into the Celtic Revival. By the late 19th century it often took the form of ethnic nationalism particularly within the United Kingdom of Great Britain and Ireland, where the Irish Home Rule Movement resulted in the secession of the Irish Free State in 1922. There were also significant Welsh, Scottish and Breton nationalist movements, giving rise to the concept of Celtic nations. After World War II, the focus of the Celticity movement shifted to linguistic revival and protectionism, e.g. with the foundation of the Celtic League in 1961, dedicated to preserving the surviving Celtic languages.
The Celtic revival also led to the emergence of musical and artistic styles identified as Celtic. Music typically drew on folk traditions within the Celtic nations. Art drew on decorative styles associated with the ancient Celts and with early medieval Celtic Christianity, along with folk-styles. Cultural events to promote "inter-Celtic" cultural exchange also emerged.
In the late 20th century a number of scholars criticised the idea of modern Celtic identity, sometimes also arguing that there never was a common Celtic culture, even in ancient times. Michael Chapman's 1992 book The Celts: The Construction of a Myth led to what the archaeologist Barry Cunliffe has called a "politically correct disdain for the use of 'Celt'" The extent to which a modern Celtic identity remains a useful concept continues to be debated.
Traditionally, the essential defining criterion of Celticity is seen as peoples and countries that do, or once did, use Celtic languages and it is asserted that an index of connectedness to the Celtic languages has to be borne in mind before branching out into other cultural domains. Another approach to defining the Celts is the contemporary inclusive and associative definition used by Vincent and Ruth Megaw (1996) and Raimund Karl (2010) that a Celt is someone who uses a Celtic language or produces or uses a distinctive Celtic cultural expression (such as art or music) or has been referred to as a Celt in historical materials or has identified themselves or been identified by others as a Celt or has a demonstrated descent from the Celts (such as family history or DNA ancestry).
Since the Enlightenment, the term Celtic has been applied to a wide variety of peoples and cultural traits present and past. Today, Celtic is often used to describe people of the Celtic nations (the Bretons, the Cornish, the Irish, the Manx, the Scots and the Welsh) and their respective cultures and languages. Except for the Bretons (if discounting Norman & Channel Islander connections), all groups mentioned have been subject to strong Anglicisation since the Early Modern period, and hence are also described as participating in an Anglo-Celtic macro-culture. By the same token, the Bretons have been subject to strong Frenchification since the Early Modern period, and can similarly be described as participating in a Franco-Celtic macro-culture.
Less common is the assumption of Celticity for European cultures deriving from Continental Celtic roots (Gauls or Celtiberians). These were either Romanised or Germanised much earlier, before the Early Middle Ages. Nevertheless, Celtic origins are many times implied for continental groups such as the Asturians, Galicians, Portuguese, French, Swiss, Alpine Italians, Germans, or Austrians. The names of Belgium and the Aquitaine hark back to Gallia Belgica and Gallia Aquitania, respectively, in turn named for the Belgae and the Aquitani. The Latin name of the Swiss Confederacy, Confoederatio Helvetica, harks back to the Helvetii, the name of Galicia to the Gallaeci and the Auvergne of France to the Averni.
Celtic revival and Romanticism
'Celt' has been adopted as a label of self-identification by a variety of peoples at different times. 'Celticity' can refer to the inferred links between them.
During the 19th century, French nationalists gave a privileged significance to their descent from the Gauls. The struggles of Vercingetorix were portrayed as a forerunner of the 19th-century struggles in defence of French nationalism, including the wars of both Napoleons (Napoleon I of France and Napoleon III of France). Basic French history textbooks emphasised the ways in which Gauls could be seen as an example of cultural assimilation; however, the notion that French history textbooks commonly began with the famous words "Nos ancêtres les Gaulois..." ("Our ancestors the Gauls...") is not supported in fact. A similar use of Celticity for 19th century nationalism was made in Switzerland, when the Swiss were seen to originate in the Celtic tribe of the Helvetii, a link still found in the official Latin name of Switzerland, Confœderatio Helvetica, the source of the nation code CH and the name used on postage stamps (Helvetia).
Before the advance of Indo-European studies, philologists established that there was a relationship between the Goidelic and Brythonic languages, as well as a relationship between these languages and the extinct Celtic languages such as Gaulish, spoken in classical times. The terms Goidelic and Brythonic were first used to describe the two Celtic language families by Edward Lhuyd in his 1707 study and, according to the National Museum Wales, during that century "people who spoke Celtic languages were seen as Celts."
At the same time, there was also a tendency to play up alternative heritages in the British Isles at certain times. For example, in the Isle of Man, in the Victorian era, the Viking heritage was emphasised, and in Scotland, both Norse and Anglo-Saxon heritage was emphasised.
A romantic image of the Celt as noble savage was cultivated by the early William Butler Yeats, Lady Gregory, Lady Charlotte Guest, Lady Llanover, James Macpherson, Chateaubriand, Théodore Hersart de la Villemarqué and the many others influenced by them. This image coloured not only the English perception of their neighbours on the so-called "Celtic fringe" (compare the stage Irishman), but also Irish nationalism and its analogues in the other Celtic-speaking countries. Among the enduring products of this resurgence of interest in a romantic, pre-industrial, brooding, mystical Celticity are Gorseddau, the revival of the Cornish language, and the revival of the Gaelic games.
Contemporary Celtic identity
The modern Celtic groups' distinctiveness as national, as opposed to regional, minorities has been periodically recognised by major British newspapers. For example, a Guardian editorial in 1990 pointed to these differences, and said that they should be constitutionally recognised:
Smaller minorities also have equally proud visions of themselves as irreducibly Welsh, Irish, Manx or Cornish. These identities are distinctly national in ways which proud people from Yorkshire, much less proud people from Berkshire will never know. Any new constitutional settlement which ignores these factors will be built on uneven ground.
The Republic of Ireland, on surpassing Britain's GDP per capita in the 1990s for the first time, was given the moniker "Celtic tiger". Thanks in part to campaigning on the part of Cornish regionalists, Cornwall was able to obtain Objective One funding from the European Union. Scotland and Wales obtained agencies like the Welsh Development Agency, and Scottish and Welsh Nationalists have recently supported the institution of the Scottish Parliament and National Assembly for Wales. More broadly, distinct identities in opposition to that of the metropolitan capitals have been forged and taken strong root.[clarification needed]
These latter evolutions have proceeded hand in hand with the growth of a pan-Celtic or inter-Celtic dimension, seen in many organisations and festivals operating across various Celtic countries. Celtic studies departments at many universities in Europe and beyond, have studied the various ancient and modern Celtic languages and associated history and folklore under one roof.
Some of the most vibrant aspects of modern Celtic culture are music, song and festivals. Under the Music, Festivals and Dance sections below, the richness of these aspects that have captured the world's attention are outlined.
The USA has also taken part in discussions of modern Celticity. For example, Virginia Senator James H. Webb, in his 2004 book Born Fighting–How the Scots-Irish Shaped America, controversially asserts that the early "pioneering" immigrants to North America were of Scots-Irish origins. He goes on to argue that their distinct Celtic traits (loyalty to kin, mistrust of governmental authority, and military readiness), in contrast to the Anglo-Saxon settlers, helped construct the modern American identity. Irish Americans also played an important role in the shaping of 19th-century Irish republicanism through the Fenian movement and the development of view that the Great Hunger was a British atrocity.
Criticism of modern Celticism
In 1996, Dr Ruth  and Emeritus Professor Vincent Megaw  of Flinders University in the Antiquity article "Ancient Celts and modern ethnicity" examined ethnic identity particularly in relation to Celtic identity in arguing against critics seemingly motivated by an English nationalist agenda opposed to further integration with Europe who saw modern Celtic identity as a threat.
In 1998, Dr Simon James of the University of Leicester  in the Antiquity article "Celts, politics and motivation in archaeology" replied to Ruth and Vincent Megaw's article questioning the suitability of the term Celtic in the historic sense. The core of his argument was that the Iron Age peoples of Britain should be considered not as generic Celts, but as a mosaic of different societies, each with their own traditions and histories. Later in 1998, this line of reasoning came under criticism, being labelled an intellectual extension of modern British cultural colonialism, as well as for simplifying the anthropological correlation between material culture and ethnicity. Ruth and Vincent Megaw in the Antiquity article "The mechanism of (Celtic) dreams?': a partial response to our critics."  attacked 'Celt-sceptics' for being motivated by English nationalism or anxieties about the decline of British imperial power.
Simon James, in 1998, wrote a response arguing that the rejection of a Celtic past was not 'nationalist' but partly due to archaeological evidence, and usually by a post-colonial and multi-cultural agenda with recognition that Britain has always been home to multiple identities. However,[clarification needed] he does say this of Ruth and Vincent Megaw's book published in 1989, "Celtic Art from its beginnings to the Book of Kells":
An excellent general work on the 'La Tene' art style, the name given to the largely abstract, 'curvilinear' (curving-line) art popularly known as 'Celtic'.
Richard Warner of the Ulster Museum argued in 1999, that only around a quarter of Ireland contains significant archaeological evidence of the Iron Age culture that archaeologists typically identified as Celtic at that time and that the Atlantic Celts were "not Celts". Warner associated Celticity with a "gene pool" when he claimed that the Celts were "warrior-adventurers whose influence and effect far outweighed their numbers, but who were most unlikely to have a significant or measurable effect on the Irish gene pool". However, he has since led a team that has uncovered much evidence of Bronze Age gold mining in the Mourne Mountains which was also one of the Iron Age areas of Ireland he showed on his map and which has now become a sequestered gold source for the Celtic jewellery industry in Ireland now that mining has resumed.
An answer to this seeming puzzle has now come with evidence uncovered in 2008 that the Insular Celts were part of an Atlantic trading-networked culture speaking Celtic languages of the Atlantic Bronze Age and probably earlier.
Six nations tend to be most associated with a modern Celtic identity, and are considered 'the Celtic nations'.
It is these six nations that (alone) are considered Celtic by the Celtic League and the Celtic Congress amongst others. These organisations ascribe to a definition of Celticity based mainly upon language. In the aforementioned six regions, Celtic languages have survived and continue to be used to varying degrees in Ireland, Scotland, Wales, Isle of Man, Cornwall and Brittany. There are also Celtic nomads: Irish Travellers called "Pavee" that speak a language called Shelta that is a creole of Irish Gaelic and other languages and Indigenous Highland Scottish Travellers called "Tinkers" who speak a language called Beurla Reagaird that is an acrolect of Scottish Gaelic.
A number of activists on behalf of other regions/nations have also sought recognition as modern Celts, reflecting the wide diffusion of ancient Celts across Europe. Of these, the most prominent are Galicia, Asturias and Cantabria.
A Celtic language did not survive in Galicia / Northern Portugal (together Gallaecia), Asturias nor Cantabria, and as such they fall outside of the litmus test used by the Celtic League, and the Celtic Congress. Nevertheless, many organisations organised around Celticity consider that Galicia / Northern Portugal (Douro, Minho and Tras-os-Montes) and Asturias "can claim a Celtic cultural or historic heritage". These claims to Celticity are rooted in the long historical existence of Celts in these regions and ethnic connections to other Atlantic Celtic peoples (see Celtiberians, Celtici and Castro culture). In 2009, the Gallaic Revival Movement, sponsored by the Liga Celtiga Galaica (the Galician Celtic League), claimed to be reconstructing the Q-Celtic Gallaic language based on the Atebivota Dictionary and Old Celtic Dictionary compiled by Vincent F. Pintado.
Elements of Celtic music, dance, and folklore can be found within England (e.g. Yan Tan Tethera, Well dressing, Halloween), and the Cumbric language survived until the collapse of the Kingdom of Strathclyde in about 1018. England as a whole comprises many distinct regions, and some of these regions, such as Cumbria, Lancashire, Western Yorkshire and Devon, can claim more Celtic heritage than others. In 2009, it was claimed that revival of the Cumbric language was being attempted in the Cumberland area of England, however the idea that "Cumbric" was separate from Old Welsh has been criticised as stemming from the difficulty that many English historians have with accepting Old Welsh as the language once spoken all over England. It was suggested by Colin Lewis in Carn magazine that revivalists in the north of England use Modern Welsh to enable use of Welsh's existing rich cultural basis rather than having to "reinvent the wheel" in much the same way as has been done successfully in Derbyshire, another area where elements of Celtic culture survive. Previously, in Devon and the West Country, local Celtic language revivalists, similarly, finally suggested using Modern Cornish.
Similarly, in France outside of Brittany, in the Auvergne (province) chants are sung around bonfires remembering a Celtic god. There are also modern attempts to revive the polytheistic religion of Gauls.
A profound interest in genealogy and family history is noted as a feature of the culture of the Celtic nations and regions and people with a Celtic heritage. People in traditional Celtic areas can recite their genealogy back though the generations as history, moving rhythmically from one name to another using only Christian name as illustrated by lyrics of the Runrig song Siol Ghoraidh "The Genealogy of Ghoraidh".
Migration from Celtic countries
A significant portion of the populations of the United States, Canada, Australia, Argentina and New Zealand is composed of people whose ancestors were from one of the "Celtic nations". This concerns the Irish diaspora most significantly (see also Irish American), but to a lesser extent also the Welsh diaspora and the Cornish diaspora.
There are three areas outside Europe with communities of Celtic language speakers:
- the province of Chubut in Patagonia with Welsh-speaking Argentinians (known as Y Wladfa)
- Cape Breton Island in Nova Scotia with Scottish Gaelic-speaking Canadians
- southeast Newfoundland with Irish-speaking Canadians.
The most common mother-tongue amongst the Fathers of Confederation which saw the formation of Canada was Gaelic. There is a movement in Cape Breton for a separate province in Canada, as espoused by the Cape Breton Labour Party and others.
In some former British colonies, or particular regions within them, the term Anglo-Celtic has emerged as a descriptor of an ethnic grouping. In particular, Anglo-Celtic Australian is a term comprising about 80% of the population.
The claim that distinctly Celtic styles of music exist was made during the nineteenth century, and was associated with the revival of folk traditions and pan-Celtic ideology. The Welsh anthem "Hen Wlad Fy Nhadau" was adopted as a pan-Celtic anthem. Though there are links between Scots Gaelic and Irish Gaelic folk musics, very different musical traditions existed in Wales and Brittany. Nevertheless, Gaelic styles were adopted as typically Celtic even by Breton revivalists such as Paul Ladmirault.
Celticism came to be associated with the bagpipe and the harp. The harp is considered to be the national instrument of Wales and is used to accompany penillion singing (or cerdd dant) where the harpist plays a melody and the singer sings in counterpoint to it. The roots revival, applied to Celtic music, has brought much inter-Celtic cross-fertilisation, as, for instance, the revival by Welsh musicians of the use of the mediaeval Welsh bagpipe under the influence of the Breton binioù, Irish uillean pipes and famous Scottish pipes, or the Scots have revived the bodhran from Irish influence. Charles le Goffic introduced the Scottish Highland pipes to Brittany.
Unaccompanied or A cappella styles of singing are performed across the modern Celtic world due to the folk music revival, popularity of Celtic choirs, world music, scat singing and hip hop rapping in Celtic languages. Traditional rhythmic styles used to accompany dancing and now performed are Puirt a beul from Scotland, Ireland, and Cape Breton Island, Nova Scotia, Sean-nós song from Ireland and Kan ha diskan from Brittany. Other traditional unaccompanied styles sung currently are Waulking song and Psalm singing or Lining out both from Scotland.
The emergence of folk-rock led to the creation of a popular music genre labelled Celtic music which "frequently involves the blending of traditional and modern forms, e.g. the Celtic-punk of The Pogues, the ambient music of Enya ... the Celtic-rock of Runrig, Rawlins Cross and Horslips." Pan-Celtic music festivals were established, notably the Festival Interceltique de Lorient founded in 1971, which has occurred annually since.
The birthdays of the most important Celtic Saints of Celtic Christianity for each Celtic nation have become the focus for festivals, feasts and marches: Ireland – Saint Patrick's Day, Wales – Saint David's Day, Scotland – Saint Andrew's Day, Cornwall – Saint Piran's Day, Isle of Man – St Maughold's Feast Day and Brittany – Fete de la St-Yves and Grand Pardon of Sainte-Anne-d'Auray Pilgrimage.
Attitudes and customs associated with the routine of the year's work, religious beliefs and practices survived the coming of Christianity in the conservative rural areas of much of the Celtic countries. All over these lands there were sacred places which had earned their status in pre-Christian times and which had only been gingerly adopted by the Christian church and given a garnish of Christian names or dedications, hills, stones, and especially wells which can still be seen festooned with rags in observance of an old ritual.
Certain days in the year were marked as festivals, and time was counted forward and backwards from them without reference to the ordinary calendar. In her fine study of the festival of the beginning of harvest, in Irish Lughnasa, Máire MacNeill has demonstrated the continuity between the myth known from the early Middle Ages and the customs which survive to our own day. Lughnasa, called Calan Awst in Welsh, is a summer feast and was dedicated to the god Lug. Of great interest is the use in the Coligny calendar of the word Saman, a word that is still in use in Gaelic refer to Hallowe'en (evening of the saints), an important day and night and feast among the Celts (in Welsh it is called Calan Gaeaf). In Gaelic folklore, it was considered a particularly dangerous time, when magical spirits wandered through the land, particularly at nightfall. The other important feast days that also continued to be celebrated under Christian guise, but often with a pagan spirit were Imbolc (Gŵyl Fair y Canhwyllau in Welsh), the start of lambing, now the feast day of St Brigit and Beltane, the spring feast, now May Day (Calan Mai in Welsh).
In their pilgrimages the people combined the celebration of a holy place and a holy day. Pilgrimages are still an important feature of country life, particularly in Ireland, Brittany and Galicia. The most impressive pilgrimages include Croagh Patrick on the west coast of Ireland on the last Sunday in July (the beginning of harvest) and Santiago de Compostela in Galicia. The inspiration for famous Celtic singer and harpist Loreena McKennitt's million-selling CD The Mask and the Mirror came in part from a visit to Galicia and in particular Santiago de Compostela. Some of her songs are about Celtic feast days such as All Souls Night about Samhain on The Visit CD which featured in the erotic thriller film Jade starring David Caruso and "Huron Beltane Fire Dance" on the Parallel Dreams CD.
To signal the coming of summer and the return of real warmth, on Beltane (Bel's Fire), the May Day festival time, dances such as the 'Obby 'Oss dance festival at Padstow in Cornwall are held with the maypole as its focus point. The celebrations are tied to the promotion of fertility and a fruitful growing season with the 'Obby 'Oss dancing to the music through streets decked out in flowers, and sycamore, ash and maple boughs. Shortly after on 8 May, the ancient rites of Spring are celebrated with the Furry Dance procession to an ancient tune made famous in the song "The Floral Dance" through the streets of nearby Helston together with the mystery play Hal an Tow. Fertility festivals like this used to be celebrated all over Britain.
In the early 1980s seven-time world champion step-dancer, Michael Flatley toured the world with The Chieftains and performed five solo dances (including a triple spin) at Carnegie Hall, New York, in a defining moment that led more than a decade later to a show at the Eurovision Song Contest in Dublin that soon developed into the Irish dance extravaganza the world came to know as Riverdance Jean Butler, one of the original leads, also worked with The Chieftains. Flatley later put up his own show, Lord of the Dance. The spectacular success of both shows can certainly take the credit for the revitalised Celtomania of the last half of the 1990s.
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