CELTIC MYTHOLOGY INTRODUCTION The mythology of the Celts which has been preserved in written form since the early Middle Ages contains evidence of their beliefs in pre-Christian times. During the period of Rome's expansion into north-west Europe references to Celtic beliefs were made in the writings of classical authors. Similarly, in those parts of the Empire which had been predominantly Celtic in the time of their independence native deities continued to be worshipped alongside the gods of the Roman pantheon. A considerable body of evidence exists in the form of inscriptions to Celtic deities in France, southern Britain and, to a lesser extent, in Spain and other parts of the Roman Empire in which Celtic influence had existed. It might be assumed that it would be possible to correlate closely the literary and epi-graphic evidence of the pre-Roman and Roman period with the myths themselves but, with few exceptions, this is not possible. This apparent dichotomy, however, may be resolved after an examination of both the mythology proper and the evidence, literary and archaeological. From a study of any of the main sources alone it would be possible to be misled as to the nature of Celtic Mythology. By considering evidence other than the purely mythological the chance of error is minimised, although complete certainty of interpretation is not possible in the study of any mythology remote in time. THE CELTIC TRADITION The Celtic tradition is preserved in a large number of texts both of prose and of poetry, the earliest of which in its present form dates to the eighth century A.D., although most belong to the centuries following. Most important and valuable are those from Ireland, for example the Books of Eeinster, of the Dun Cow, of Ballymote, and the Yellow Book of Eecan. Of less value in the present context, although important in its own right, is the literature of the Welsh tradition, for example the Mabinogion preserved in the White Book of Rhydderch and the Red Book of Hergest dating from the fourteenth century A.D. It may be seen that their compilation dates to the Christian period but much of their contents. Irish and Welsh alike, dates from internal evidence to a much earlier period. In using this Celtic literature as a source for mythology it has always to be remembered that even the earliest extant texts date to the Christian period and that in all probability they were written by monks. For this reason one must expect Christian accretions and the possibility that certain important evidence may have been suppressed so as to conform with the Christian ethic. Any such suppressions have, of course, been irretrievably lost and could never be reconstructed. In the Irish literature the native gods are hardly, if at all, disguised and are therefore immediately recognisable. The Welsh literature tends to disguise deities as kings or knights, or even clerics, but they are, nevertheless, of some value when used in conjunction with Irish evidence. THE MYTHOLOGICAL CYCLE IN IRELAND Modern scholars have classified much of the mythology of the Celts into Cycles. The Mythological Cycle is important in that it gives something of the early history of Ireland in the form of myths or, as has been said with some justification, it treats some of the native myths as history, even fixing definite dates to what must surely have been mythical events. The Lcbor Gabala, the 'Book of Conquests', tells of successive invaders of Ireland, an account slightly modified by suitable obeisances to orthodox Christianity but retaining much of the flavour of pre-Christian times. The first race which inhabited Ireland perished in the biblical Flood. It was followed two-hundred and sixty-eight years later, on the first of May, by a group of twenty-four males and twenty-four females led by Partholon. At that time there were in Ireland only one treeless and grassless plain, three lakes and nine rivers, but during Partholon's time four plains were cleared and seven new lakes were formed. Before his time there had been no tilling of the soil. After three centuries the population had grown to five thousand but on the tercentenary of Partholon's landing his people were wiped out by an epidemic, gathering together to die on the original plain in Ireland. Although there were no survivors the knowledge brought and augmented by Partholon's people did not perish, the knowledge and working of gold, the first brewing of beer, the first cauldron and the introduction of domesticated cattle. To this period are also attributed some of the less tangible assets of civilisation, law-giving and ritual practices. As did their successors, so did the people of Partholon fight against and defeat the Fomorians. These latter were a race of demons, generally monstrous and hideous, who fought against Partholon with supernatural powers. After an interval of thirty years the people of Nemed came into Ireland and in their time the face of the countryside was again changed by the clearance of twelve new plains and the formation of four new lakes. Decimated by the same epidemic which had annihilated Partholon they were unable to defend themselves adequately against the Fomorians and became their vassals. Part of their tribute was the delivery on the first of November of two-thirds of the children born to them each year, two-thirds of their corn and their milk. After a battle with the Fomorians in which Conann and many Fomorian followers were killed, the remnants of the people of Nemed fled from the country. Next followed on the first of August the Fir Bolg together with the Fir Gaileoin and Fir Domnann. The similarity of these names to those of the Belgae, the Dumnonii and Gauls, has suggested that this 'invasion' refers to the arrival of certain tribes of the proto-historic period. Whether or not these are to be in any way connected with the Celtic people is uncertain, but their mythical contribution to the cumulative wealth of the country lies in the warlike sphere of their armament and the aristocratic notion of monarchy. Their rule did not remain undisputed for long although they were not attacked by the Fomorians, but they were soon dispossessed by the Tuatha De Danann, the People of the Goddess Danu. The Tuatha £>