At least one foreign writer bears witness of the fact that the pagan Irish possessed books. A Christian philosopher of the fourth century (some would place him as early as the second or third) whose name is Aethicus of Istria wrote a Cosmography of the World in which he states that on leaving Spain he hastened to Ireland where he spent some time “examining their books” (eorum volumina volvens).[20] Aethicus is not by any means complimentary. He calls the Irish sages unskilled and uncultivated teachers, but he speaks of the Spaniards in a similar strain. Possibly not understanding the Irish language he regarded all learning outside of Greece and Rome as barbarous and beneath notice. However, his statement proves that when he visited Ireland there were books at least a century before St. Patrick’s advent; it also shows that he found them in such abundance that he spent some time in examining them.
OGAM INSCRIPTIONS:
The point has now been reached when it is necessary to discuss the kind of writing used in pagan times. As has been stated, none of the books of pre-Christian Ireland are now extant, so evidence as to the kind of writing in use must be sought elsewhere. In the absence of books the coinage of a country has often given valuable information in this connection. In the case of Ireland, however, this source of information is lacking; for though metals were worked from very early times and gold was plentiful no trace of a native coinage has been found. Luckily there remain in the stone inscriptions the clearest proofs that the ancient Irish practised a peculiar kind of writing called Ogam.
DESCRIPTION OF OGAM:
Ogam or Ogham was a species of writing the letters of which were a combination of short lines and points on, and at both sides of, a middle or stem line called a flesc. In the specimens still remaining this Ogam writing is almost entirely confined to stone inscriptions, the groups of lines and points running along two adjacent sides of a stone with the angular edge for the flesc. The arrangement may be understood from a simple diagram.[21]
The above diagram shows the Ogam alphabet arranged in four groups. A few other characters are occasionally used. It will be noted that crude as this device for writing is, it is applied with considerable skill and is framed with much ingenuity. The simpler sounds are represented by simpler letters than the more complex. Letters in frequent use like the vowels are the easiest to form. The arrangement of the vowels is different from that used in the Latin and English alphabets but corresponds to the more scientific arrangement adopted by modern phoneticians. It is worth noting that the characters in group (ii) stand for the initial sounds of the Old Irish words for one, two, three, four, five, in the order given.
The question of Ogam writing has occupied the attention of many antiquarians and though some of the theories projected by the earlier investigators have been rejected as untenable our knowledge of Ogam at the present time is fairly definite but somewhat limited. It was once thought that Ogam was a cryptic alphabet, but many of the inscriptions have been read by means of the above key which is to be found in the Book of Ballymote. Owing to the fact that a few of the later Ogams have been found with duplicates in Roman letters they have been deciphered independently. As to the distribution of these Ogam inscribed stones it is worthy of note that in Ireland they are found chiefly in the south-west, and in Britain they are confined to those parts where it is known the Irish Gael had settled.[22] Owing to the lack of criteria for dating certain sound-changes in the Irish language it is impossible in the present stage of our knowledge to assign definite chronological limits to these Ogam inscriptions.[23] Mr. Quiggin in his account of Ogam[24] asserts that the earlier inscriptions cannot be later than the fifth century and if pagan they may be a century or two earlier. All Ogam inscriptions with accompanying Roman letters he would assign to a later period than 500 A.D. with the sole exception of the bilingual inscription of Killen Cormac (Cillin Cormac) which is believed to be earlier than 500 A.D.[25] Over three hundred Ogam inscriptions have been found and where they have not been injured or defaced they can generally be interpreted.
Heroes and druids in the older epics are represented as making constant use of Ogam letters, sometimes inscribing them on wooden staves. The state of civilization depicted in these ancient poems and prose narratives seems to belong mainly to pre-Christian Ireland.