I would like to know if any writing system of Ireland had a system of writing numerals prior to the Romans introducing Roman numerals. There are lots of sites online that show the Ogham writing system broken down into letters. But no one ever explains how to write numbers. Did they simply spell out the letters for the number (i.e. write out A-O-N for "aon" for the number 1)? Or was there some other system?

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    It is possible that the Irish used the Ogham as numerals, as well as letters. However, it is important to remember that Ogham were invented when the Irish were already familiar with the Latin alphabet. The Irish simply had no formal writing system prior to this because writing was prohibited. – called2voyage Apr 6 '17 at 15:36
  • Do you know what order the characters would be arranged in? I.e. Which marks are 1-5, which are 6-10, etc? @called2voyage – SRM Apr 6 '17 at 20:17
  • If I recall correctly, the order in the Wikipedia article is actually the standardized order. I don't have a source for that on hand. – called2voyage Apr 6 '17 at 20:19
  • Since numerals 1-10 are likely, they would have probably only used beith through ceirt in this manner. That's completely speculation however. – called2voyage Apr 6 '17 at 20:20
  • Just found that the Wikipedia article on Tally marks also says: "Roman numerals, the Chinese numerals for one through three (一 二 三), and rod numerals were derived from tally marks, as possibly was the ogham script." Though it does indicate that citation is needed. If this is true, then it would seem ogham may have been used as numerals before letters. – called2voyage Apr 19 '17 at 20:34
up vote 4 down vote accepted

No, Ireland had no written form of numerals until the adoption of Roman numerals.

The Ogam alphabet exhibits no numerals at all, from the earliest sources the alphabet only has 20 letters, with five Forfeda 'additions' at a later point in the medieval era. The alphabet is actually far more diverse than it is often given credit for, with the In Lebor Ogaim (one of our primary medieval sources on Ogham) giving us about 100 different ways of writing Ogham.

Browse the Ogham in 3D Corpus, you won't find any with numerals.

It's also questionable whether Ogham passes your requirement of 'a system of writing numerals prior to the Romans introducing Roman numeralst', with most scholars believing that Ogam was originally based on another script (5) in the 4th century(-ish), and the most common suggestion is that this 'original' is the Latin alphabet. This wouldn't be surprising as a vast number of Ogham inscriptions actually come from Western Britain, where Irish migrants would be able to become literate in Latin and develop their own system of writing.


As for the alphabet in @EvanM 's answer ... that suggestion could not be more categorically false, they quote from the 1862 and 1874 (2 volume) text Barddas. A romanticist and nationalist treatise on Welsh 'bardic' and 'druidic theology' and 'lore' written by the infamous literary forger Iolo Morganwg.

... he was regarded as the leading expert on ancient and medieval Welsh life. It was only after his death on 18 December 1826 that the truth was finally revealed - Iolo had forged many, if not most, of his manuscripts and ancient documents. (1)

To provide some more context to the man, Celtic Romanticism had begun to flourish in Britain from the 17th to 18th centuries, many of its participants were fascinated with the idea of Druids, they mixed new ideas about religion with their conservative Christian beliefs. Iolo Morganwg otherwise known by his birth name Edward Williams was born in the centre of this, and as a fervent Welsh nationalist became a major figure in the Celtic Revival. His Barddas and his activism largely helped start the modern movement of Neo-Druidism, and his writings make up a large part of its theology to this day.

You may recognise the now famous Awen symbol

enter image description here

This symbol was invented by Iolo in his Barddas with the lines:

And the mode in which it was spoken was of God's direction. His name was pronounced, and with the utterance was the springing of light and vitality, and man, and every other living thing; that is to say, each and all sprang together. And Menw 1 the Aged, son of Menwyd, 1 beheld the springing of the light, and its form and appearance, not otherwise than thus, in three columns; (2)

As for the rest of the alphabet, the Coelbren y Beirdd (English: "Bards' alphabet") as he dubs it is explained as follows:

Einigain, Einigair, or Einiger, the Giant, was the first that made a letter to be a sign of the first vocalization that was ever heard, namely, the Name of God. (2)

...

Einigan the Giant, 1 or, as he is also called, Einiget the Giant; that is, he took the three rays of light, which were used as a symbol by Menw, son of the Three Shouts, and employed them as the agents and instruments of speech, namely the three instruments B. G. D. and what are embosomed in them, the three being respectively invested with three agencies. Of the divisions and subdivisions he made four signs of place and voice, that the instruments might have room to utter their powers, and to exhibit their agencies. Hence were obtained thirteen letters, which were cut in form on wood and stone (2)

And goes onto provide the full alphabet, including numerals, as @EvanM has shown.

I cannot emphasise enough, apart from some character names, which he lifts from earlier Welsh literature, none of this exists in any form, literary or archaeological, before Iolo Morganwg, this alphabet is purely of his imagination.

To this day, Iolo Morganwg is a massively controversial figure in Britain. As an example, in 2010 the Royal Parks authority placed a memorial to the man in upmarket Primrose Hill, north-west of London where he held the first ever Gorsedd (3). This was met by:

Members of the 1,200-strong Friends of Regent’s Park and Primrose Hill branded Iolo Morganwg “a bloody criminal” when the plaque marking the site of the first meeting of the Bards in 1792 was unveiled last summer. (4)

...

In a stinging editorial in their quarterly magazine, entitled “Iolo – Who He?”, chairman Malcolm Kafetz stormed that medieval documents and poems Morganwg claimed to have discovered were later shown to be forgeries.Mr Kafetz railed: “This chap was bankrupt and a forger. A bloody criminal. This plaque has just appeared out of nowhere. It is a diabolical cheek.“The man in question, Edward Williams – otherwise known as Iolo Morganwg – had an extraordinary and interesting, but not necessarily praiseworthy life.“He had a bookshop, wrote poems and folk songs and discovered a series of influential medieval chronicles, and it was only after some 100 years that these were discovered to be forgeries. (4)


(1) Phil Carradice, BBC, Wales History Blog, 9 March 2011

(2) Iolo Morganwg, Barddas, Volume 1, 1862

(3) Gorsedd of the Bards, accessed 10/10/2018

(4) Wales Online, Campaigners win fight over Welsh legend Iolo’s memorial, accessed 10/10/2018

(5) Macalister, R. A. Stewart, The Secret Languages of Ireland reprinted by Craobh Rua Books, Armagh 1997.

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    Well, that is definitively answered and cited. Thanks. – SRM Oct 10 at 20:39

I found this for you:

There have been three symbols of sciences in use by the nation of the Cymry from the beginning. The symbol of word and speech, that is to say, a letter, ten fold, sixteen fold, twenty fold, and twenty-four fold. The first of the three, in respect of privilege and origin, is the symbol of word and speech, that is to say, a letter. The second, the symbol of harmony, that is to say, tone and music. The third, the symbol of number, which is thus,

Number Ruins

That is to say, one, two, three, four, five, six, seven, eight, nine, ten, one-ten and one, one-ten and two, one-ten and three, one-ten and four, one-ten and five, one-ten and six, one-ten and seven, one-ten and eight, one-ten and nine, two-tens; and as before to three-tens, four-tens, five-tens, six-tens, seven-tens, eight-tens, nine-tens, a hundred; and to a thousand; and from thence to ceugant. It is a secret kept from the beginning by the voice of the Gorsedd of the Bards of the Isle of Britain; and it was first appointed as a special art in the sciences of wisdom by Tydain, father of Awen, who also arranged the symbols of the art of musical [p.98 p 99] harmony, in respect of voice, string, and bellows, as is exhibited in the memorials of the Bards of the Isle of Britain.

It goes on to say how you can add these symbols together to get 100's and thousands. Just search for the title "THE THREE SYMBOLS OF SCIENCES" in the link below and you will find the section.

The Barddas

EDIT: I found this book after digging deeper based on the comments I have found support that the early Celts used hash marks to count and not what we would call numbers. So far that is all I have found.

Page 94 Paragraph 4

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    Interesting that both 5 and 10 are the same as used by the Romans. – Matt Balent Apr 6 '17 at 12:22
  • @MattBalent I agree. Interesting to see how cultures that independently create their identities end up having a lot of the same quality. – EvanM Apr 6 '17 at 12:29
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    And its base 10 also! – axsvl77 Apr 6 '17 at 14:01
  • Very interesting but Cymry is Wales not Ireland. However, the Welsh were known to use Ogham for a time, so it is possible these numerals were also used by the Irish. – called2voyage Apr 6 '17 at 15:03
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    @EvanM and others: The Ogham script was probably a cipher of another script (possibly Latin, which was already known in the area at the time). The numerals, too, were likely inspired by another culture's numerals (or possibly multiple cultures' numerals), and so are not exactly evidence of independent development of base 10 and similar shapes for the numerals. However, there are obvious reasons why base 10 might be common around the world, regardless. – called2voyage Apr 6 '17 at 15:07

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