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|Early Irish Astrology: An Historical Argument
by Peter Berresford Ellis
Ed. N.: This article was first published in Réalta (vol 3. n. 3, 1996), the journal of The Irish Astrological Association.
In all histories of western astrology there is a curious omission. There are no references to early Irish, nor - indeed - ancient Celtic, astrological practices. In fact, the only serious scholarly study on Celtic astrology was published in a French academic journal in 1902.  This dissertation, in the light of modem research, is open to debate.
The major reason for this neglect of the subject, at least during the last fifty years, has undoubtedly been the insidious influence of Robert Graves' The White Goddess (1949). This book has done singular disservice to those who seek to study the realities of Celtic cosmology and, especially, the practice of astrology. Graves was not a Celtic scholar. His highly imaginative inventions of the so-called 'tree calendar' and 'tree zodiac' inspired an outpouring of books purporting to be on 'Celtic astrology'. Graves and his acolytes have, unfortunately, seized the popular imagination but their 'tree zodiac' has nothing at all to do with the realities of the ancient Celtic world.
This is not the place to dissect Graves' inventions. This would take a lengthy article. In this polemic, I intend to confine myself to a brief outline of the historical reality of astrology in Irish society. Ireland was, and still is, part of the Celtic world. The Celts by the 3rd Century BC had reached their greatest expansion in Europe. They occupied a territory through Europe from Ireland, in the west, to the central plain of Turkey (Galatia), in the east, even as far as the sea of Azov, and north from Belgium, south into Italy, as far as Ancona, also south to Cadiz on the Iberian peninsula. They were one of the great founding civilizations of Europe; the first northern European civilization to emerge into recorded history.
Although we have many hundreds of texts and inscriptions in Continental Celtic languages dating from the 4th Century BC, our earliest survivals from the extensive literatures of the Insular Celts, the Irish and Welsh, do not start to date much before the 6th century AD.
Greek and Latin writers show clearly that the Celts were not only advanced in astronomy but that they were respected, especially by the Greeks, for their 'speculations from the stars'. Even the Romans, from Caesar to Pliny, paid tribute to their astronomy. One of the first to note that the ancient Celts believed the world to be round (not flat) was Martial (c. AD 40-103/4) who, himself, claimed Celtic ancestry.
The famous 1st Century BC Coligny Calendar, once thought to be the most extensive document in a Celtic language but now surpassed by other fascinating discoveries, has been dated to its original computation, by its astronomical observations and calculations. This highly sophisticated lunar and solar predictor was, according to the leading Celtic scholar, Dr Garrett Olmsted, first constructed in 1100 BC.  It is important to note that the concepts of the calendar find parallels in Vedic cosmology. We will return to this later.
It was the Greek Hippolytus (AD 170-236), using an earlier source, who stated that the ancient Celts foretold the future from the stars by ciphers and numbers after the manner of the Pythagoreans. Space precludes a discussion on the argument which took place among the Alexandrian School of Greek writers as to whether the Celts borrowed their ideas from Pythagoras or whether Pythagoras borrowed his ideas from the Cults. This fascinating argument among Greek scholars began in the 2nd Century BC and continued for some centuries. The concept that the Greeks borrowed from the Celts, found a leading advocate in the Athenian-born scholar Clement of Alexandria (c. AD 150 - AD 211/216).
To turn to the position in Ireland, the evidence shows that the Irish, like the rest of the Celtic world, were also highly advanced in astronomical observation, particularly in the construction of calendars. One of the first Irishmen we can name as an acknowledged expert in this field was Mo-Sinu maccu Min (d. AD 610), the abbot of Bangor, Co. Down.  His pupil, Mo Chuaróc macc Neth Sémon of Munster, is recorded as having written a major work on astronomical computations. Alas, no copy of that seems to have survived but we do have a similar work by Cummian (d. AD 633), a professor at Clonfert, Galway.  Then we have a mid-7th Century astronomical text by Aibhistin (more widely called Augustin and once confused with Augustine of Hippo). Aibhistin was the earliest medieval writer to discuss the question of the tides in relationship to the phases of the moon. 
The Julian calendar appears to have been introduced into Ireland by the end of the 5th Century AD, with the incoming of Christianity, displacing native calendars. But a most exciting recent discovery has been the 'lost' Irish 84-year Easter Table covering the years AD 438-521, found during the 1980s in the Biblioteca Antoniana, in Padua. This was the calendar, or computus, referred to by Colmbanus in his famous letter to Pope Gregory to support the Celtic dating of Easter.  It becomes clear from both calendrical studies and astronomical tracts that the forms of astrology being practiced in Ireland from the introduction of the Christian period would be substantially the same as those being practiced by the Greco-Romans at this time.
The Greco-Latin forms appear to have displaced the native Irish system when Christianity and Latin learning entered the country. This system was fairly well established in Ireland by the 7th Century AD from when our earliest surviving texts, on astronomy and related astrology, survive.
In the 12th Century AD the new Arabic learning swept into Ireland, carried there by returning Irish religious and scholars who had been teaching in the great universities of Europe such as Bologna, Padua and Montpellier. Father Francis Shaw SJ has pointed out that at this time the Irish medical practitioners, who were renown throughout Europe, adopted Arabic medical ideas. As Father Shaw says: 'Arabian medicine had for sisters Arabian philosophy and Arabian astrology'. 
During the period of the 12th to 17th Centuries we find many works on Arabic astronomy and astrology being translated into Irish  and that the Irish astrological practices took on the Arabic forms which were also adopted by the rest of Western Europe. One of the areas in which scholars must do more work is with the countless untranslated and unedited Irish medical texts, an area where astrology was used. Before 1800 the Irish language contained the largest collection of medical manuscript literature surviving in any one language.
With the English conquests of the 17th Century, the native traditions of astrology were quickly stamped out and astrology became the province of the colonists and their culture. One of the last native works was written by a Jesuit priest from Co. Down, Father Manus O'Donnell SJ in the mid-17th century which was based on the Lunario of Geronymo Cortès, which has subsequently been translated, introduced and edited with notes and a glossary by F.W. O'Connell and R.M. Henry entitled An Irish Corpus Astronomiae (David Nutt, London, 1915).
We can trace this historical development of Irish practices in a linguistic mode in the earliest writings we find that the vocabulary used to name the zodiac, planets, the galaxy and constellations, were given in native concepts.  For example:
The constellation of Leo was known as An Corran, which means a reaping hook. Next time you look at Leo note the sequence of brighter stars rising above Regulus in the shape of a back-to-front question mark'?' which consequently resembles a sickle. Mars was called An Cosnaighe or 'the defender'. Venus was identified by at least three or four ancient names, as was Mercury. These survive in modem Manx; The Pole Star was An Gaelin - the beam that lights the way home. The Galaxy or Milky Way was called Bealach na Bo Finne (the way of the white cow). Of the sun and moon we have a surprisingly extensive vocabulary in Old Irish. There are five names for the sun and six for the moon, all native concepts.
Perhaps it is superfluous to add that these terms were also backed by the necessary mathematical technical jargon required for the practice of astronomy and astrology. One should point out that while this vocabulary still survives in Irish, the English equivalents are loan words from Greek, Latin and Arabic.
When the Greco-Latin ideas took firmer hold on the Irish perceptions, we note a change in the vocabulary. Native ideas of planets and zodiacal signs began to be dropped in favour of the Greco-Latin concepts and these were, at first, simply translated into Irish. For example:
Aries became An Rea or Reithe, a translation of ram (aries = Latin for ram and so on); thus the constellation of Cancer was known as An Portán, the crab. There being no concept of lion in Old Irish the word used for Leo here was Cú - a large hound; while Virgo was Oighbhean, a young girl; Capricorn became Pocán, the goat; Sagittarius was An Saighead, an archer or soldier, and so on.
We can perceive areas where the native and imported concepts ran side by side for Orion was named An Selgaire Mhór (The Great Hunter) but the Belt of Orion was called Buaile an Bhodaigh (enclosure or belt or the enlightened).
The final linguistic process in Irish took place after Arabic learning was introduced in the 12th Century and soon even translations of the names were dropped in favour of a simple Irish-ising of the foreign word. Therefore, Orion became Oirion, Aires was Airges, followed by Leo, Saigitairius, Mercuir, Uenir, Joib and Mars. The modern Irish astronomical vocabulary (in terms of names of planets, constellations and so forth) is now mainly made up of loan words just like the English astronomical/astrological vocabulary.
During the early 20th Century, when there was a reawakening of interest in astrology, researchers, seeing this obvious loan word vocabulary, jumped to the wrong conclusion that there had been no native tradition of astronomy or astrology in Ireland. Both A.H. Allcroft (The Circle and the Cross, 2 vols, Macmillan, London, 1927) and Lewis Spence (The History and Origin of the Druids, Rider and Co, 1949) believed there was no advanced native traditions. The reverse was, of course, true. Indeed, as Dr Dáibhi Ó Cróinin has already pointed out in his excellent book Early Mediaeval Ireland 400-1200, Longman, 1995, the Irish astronomers were doing work, which was often far more advanced and accurate than their European counterparts. The lists of astronomical sightings of bright stars, comets, eclipses and so on, recorded in the annals and chronicles are more accurate than in most other European documentation. 
It would be bizarre if the early Irish had been highly advanced in astronomy at this period but did not practice astrology. The proof comes with our first surviving Irish astrological charts dating from the 8/9th Centuries. These are to be found in Swiss and German libraries like many Irish literary remains of this period.  As an aside, we significantly find the signs of the zodiac carved on some of the Irish High Crosses, such as the early 10th century cross of Muiredach at Monasterboice.
Indeed, in Old Irish there were at least seven words for an astrologer. Rollagedagh (one who gains knowledge from the stars), fisatóir (one who gains knowledge from the heavens) - still found in Manx fysseree as a word for philosopher; eastrolach (one who gains knowledge from the moon), fathach (one steeped in prophecy) and n éladoir (one who divinates from the sky), and réalt-eolach (one versed in astrology) and réaltóir. To be pedantic, néladoir is argued as meaning a 'cloud diviner' but it is glossed in a 14th Century manuscript as 'astrologer' as are all these terms. 
In the Brehon Laws we find that astronomers/astrologers had to be qualified. The degree of foirceadlaidhe was a degree of the fifth order of wisdom, in which one had to prove their knowledge of astronomy and astrology. The earliest word for a horoscope in Irish occurs as nemindithibh, noted by Dr Whitley Stokes in the Thesaurus Palaeohibernicus. Nem = heavens/sky while nemgnacht means a studying of the heavens, perhaps our earliest word for astrology. Indithem is an act of consideration.
For overwhelming proof that predictive astrology was practiced in ancient Ireland one only has to turn to the innumerable references in Irish mythological texts and what are rather disparagingly referred to as 'pseudo' histories, that is stories of early Irish history which fall in the scholastic mind in the grey areas between mythology and history. Stories are full of references of birth charts drawn up by Druids and also Christian religious. In one text attributed to the 7th Century is there a question asked of Cillin, which disproves the theory of some critics that the ancient Irish merely look for omens in the clouds. Dénamh me an leársgáil na realtai. Cen uair rathciuil agam?' ("Make me a map of the stars. What hour will be auspicious for me?") Now the term leársgáil na realtai, a chart or map of the stars, makes it clear what is wanted - a horoscope.
Most important is the statement given by Felim Bocht Ó hUigiunn in the 14th Century: 'bi uair ag an impidhe na reaht-eolais '-there is always a correct moment to ask a question from the stars (or to gain star knowledge). Any modem horary astrologer will tell you that much.
There is an 8th Century Irish poem which endorses the idea that the ancient Irish did not begin work on building houses until a right moment to start had been assessed by an astrologer. One verse says:
I have heard there was a house building
In Tuaim Inbhir
Nor is there a house more auspicious
with its stars
with its sun and its moon
To come to our most important question: it is pertinent to ask whether anything can be salvaged of the earliest Irish astrological traditions before the introduction of the Greco-Latin forms? It is still early days to make definite pronouncements but initial researches indicate that the ancient Irish, and, indeed, the ancient Celts, were practicing a predictive form of astrology which paralleled the early Hindu forms, that which we now called Vedic astrology. In other words, a study of linguistic concepts and early cosmological motifs and calendrical philosophies of both Celtic (inclusive of Old Irish) and Sanskrit/Vedic cultures give a path back to the common Indo-European roots of our cultures,
This is not at all surprising. Most readers will be aware of the Indo-European hypothesis and know that, of all the European cultures, Ireland has preserved more links with the Hindu branch of the Indo-European culture than any other western European people. The links between ancient Irish culture and Sanskrit/Vedic culture have been commented on by scholars since the 19th Century. As early as 1815 Adolphe Pictet had pointed out the links in De l'affinite des langues celtiques avec le Sanscrit. Professor Myles Dillon (1900-1972) was one of the leading pioneers in this fascinating field of study, showing the commons points in mythology, in social custom and, importantly in law. There are many points of reference in the Law of the Sénechus or, as it is popularly known these days, the Brehon laws and Hindu Laws.  But the common link of language is obvious.
As Dr Calvert Watkins of Harvard University has pointed out: the Celtic languages, most clearly Old Irish, represent an extraordinarily archaic and conservative linguistic tradition within the Indo-European tradition.... The classical Old Irish nominal and verbal system of the eighth century of the Christian era is a far truer reflection of the state of affairs in Indo-European than is the Latin system of more than a thousand years before. In the syntactic domain of word order, the structure of the archaic Old Irish sentence can be compared only with that of the sentence in Vedic Sanskrit or the Hittite of the Old Kingdom.' 
As early as 1895 Dr Heinrich Zimmer had observed corresponding cosmological perceptions in the earliest surviving Celtic calendar, that of Coligny, and Vedic cosmology. The final word confirming this appears to be Dr Olmsted's detailed analysis of the calendar. 
The idea that these 'signposts' might lead to the fact that ancient Celtic astrology and Vedic astrology also had a common link, another surviving parallel, was thrown into sharp relief by a small gloss on a 9th Century Irish manuscript at Wurzburg. The word budh was glossed by 'point of fire' and 'planet Mercury'. Certainly Cormac's 10th Century Glossary (an early Irish dictionary) explains that budh/bott' means 'Aine's fire', Aine was an Irish deity, thought to be a moon goddess, although she appears in a male form as well as female. If budh was a name for Mercury then it places us close to the Vedic ball game.
Boudi and the stem budh appear in all the Celtic languages. It means - all victorious, gift of teaching, accomplished, exulted, virtue and so forth. In Breton today, for example, boud means 'to be'. You will see the stem in the name Bouddica, more commonly referred to in English as Boadicea, the Celtic warrior queen of the Iceni who led an uprising against Roman rule in 60 AD The important thing is that the word occurs in Sanskrit and Buddha is the past participle of the stem budh, to know or enlightened. This is the title given to Sakyamuni Gautama - the Enlightened One. What is important is that in the Vedas the planet Mercury is also known as budh.
Can the Celtic branch of Indo-European and the Sanskrit branch of Indo-European both retain this same concept? What other common concepts do the Celts and the Vedas have in common when observing the night sky? I believe that this research will eventually point the way to the earliest forms of Celtic astronomy and astrology. The Old Irish name for the month of July, incidentally, was Boidhmis (month of Boidh). Orion's Belt, as previously mentioned, was BuaiIe an Bhodaigh. And Budh na Saoghal was a term for 'world knowledge'.
But, as I stress, it is early days as yet. The research is ongoing and I am well aware that my good friend, Professor Gearóid Mac Eoin is currently is inclined to believe that budh in Irish is only a 'ghost word', an element deriving from bith 'world, life' often given as findbudh and which was misidentified by Micheál Ó Cléirigh, compiler of Foclóir no Sanasan Nua, the first published Irish dictionary, printed in Louvain in 1643. There is still much to sort out linguistically before we can draw the final line but these studies are demonstrating early Irish perceptions of cosmology.
Naturally, most astrologers would doubtless like to see, as final proof, a collection of specific early Irish, or Celtic, charts - comparable with surviving Greek horoscopes of Vattius Valens, or Critodemus or Antigonus of Nicaea. Such charts have still to be to be found and identified. I am not too sanguine about this. We are lucky that the 8th/9th Century Irish charts survive in Basel. A lot of early material was destroyed in the 17th and 18th Century during the concentrated attempts to suppress the Irish language and books and manuscripts. I doubt that we will find anything that predates the medieval period. That is not to say the situation is entirely without hope. 
The field of research is wide and there are, sadly, hardly any workers in it. To give an idea of the problem, the vast wealth of Irish language medical books are still fairly untouched by translators or researchers. Our Knowledge of Irish mythology is based on some 150 tales Professor Kuno Meyer and Dr Eleanor Hull have both estimated that there are a further 400 identified texts that had not been examined and that a further 50/100 which could still be hidden in libraries. This should give an idea of the enormity of the task to be undertaken in areas of Irish manuscript research.
Texts in Continental Celtic are still being discovered. In 1993 a bronze tablet with 200 lines of legal material in Celtic was found in Northern Spain. So far, however, the Coligny Calendar remains our principal text from the pre-Greco-Roman period giving information on early Celtic cosmology.
What we can be sure of, at this time, is that the Irish (and the Celts generally) have a long tradition of astrological learning stretching back to a time before Christianity and the incoming of Greek and Latin learning. We can trace the development of Irish astrology fairly easily from the 7th Century AD, when our records in Irish and Hiberno-Latin begin to survive. But for anything prior to this period we must, at this time, turn to Continental Celtic remains.
One point cannot be over stressed; that this long and rich tradition of Celtic astrology has been sadly neglected and, albeit perhaps unwittingly, suppressed by those who would prefer to follow the fantasies and inventions of Robert Graves and his 'tree zodiac'. Until recently, in an Irish and wider Celtic context, we have not been able to see the star' for the trees!
 'L'Astrologie chez les Gallo-Romains', H. de la Ville Mirmont, Revue des Études Anciennes, Vol.4, 1902. « Text
 'The Gaulish Calendar: A Reconstruction from the Bronze Fragments from Coligny with an analysis of its function as a highly accurate lunar/solar predictor as well as an explanation of its terminology and development ', Dr Garrett Olmsted, Dr Rudolf Habelt GmBh, Bonn, 1992. « Text
 Mo-Sinu maccu Min and the computus at Bangor', Dr Dáibhi Ó Cróinin, Peritia, 1982. « Text
 'A Seventh Century Computus from the Circle of Cummianus' by Dr Dáibhi Ó Cróinin Proceedings of the Royal Irish Academy, vol. lxxxii (1982). « Text
 'On Augustin, an Irish 'writer of the 7th Century' by Dr William Reeves, Proceedings of the Royal Irish Academy, Vol ii, 1861, and 'On the pseudo Augustinian treatise De Mirabilius & etc' by Mario Esposito, Proceedings of the Royal Irish Academy, Vol xxxv, 1918-20. « Text
 'The 'Lost' Irish 84 year Easter Table rediscovered', by Drs D. McCarthy and Dáibhi Ó Cróinin, Peritia, 6-7, 1987/8. « Text
 'Irish Medical Men and Philosophers' by Francis Shaw SJ, in Seven Centuries of Irish Learning 1000-1700 ed. Brian Ó Cuív, Mercier Press, Cork, 1971. « Text
 An example of one such text is An Irish Astronomical Tract, based on a Medieval Latin version of a work by Messahalah, edited by Maura Power, Irish Text Society, London, 1914. Also: 'Remarks on a Cosmographical Tractate in the Irish Language in the library of the Royal Irish Academy', Maxwell II. Close, Proceedings of the Royal Irish Academy, Vol vi, 1900-1902. « Text
 The basic references for Old and Middle Irish vocabularies are: Dictionary of the Irish language: based mainly on Old and Middle Irish Materials, Royal Irish Academy, Dublin, 1983; Cormacís Glossary, trs. and annotated by John O'Donovan, ed. with notes by Whitley Stokes, Calcutta, 1868 and O' Davoreen's Glossary (c. 1554-69) ed. Whitley Stokes, Halle, Germany, 1904. « Text
 'The Chronological Apparatus of the Annals of Ulster AD 431-I 131', D. McCarthy, Peritia, 8(1994): see also Chronology of Eclipses and Comets AD 1 - 1000b3'D. Justin Schove, The Boyd ell Press, Suffolk, 1984. « Text
 'Notes on the Irish Zodiac Preserved in the Library of Basel', Henry S. Crawford, Journal of the Royal Society of Antiquaries of Ireland, vol iv, 1925. and 'Illuminations and Facsimiles from the Ancient Irish Mss in the Libraries of Switzerland, Dr Ferdinand Keller, trs Dr William Reeves, Ulster Journal of Archaeology, vol iii. « Text
 See note 9 (above). « Text
 Celt and Hindu, Myles Dillon, University College, Dublin, 1973, and Celts and Aryans, Myles Dillon, Indian Institute of Advance Study, Simla, Navrang, New Delhi, 1975. « Text
 'Indo-European Metrics and Archaic Irish Verse', Calvert Watkins, Celtica (Dublin Institute for Advanced Studies), 1963. « Text
 See note 2 (above). « Text
 'On the Celtic Languages of Continental Europe', Karl H. Schmidt, Bulletin of the Board of Celtic Studies, Cardiff vol. xxviii, 1979. 'Gaulish and Celtiberian Poetic Inscriptions', Dr Garrett Olmsted, The Mankind Quarterly, vol xxvii, no 4, 1988. « Text
All rights reserved © 1996-2001 Peter Berresford Ellis