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 and 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, Swiss, Northern Italians, Belgians and Austrians. The names of Belgium and 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,